SPEKTRA: Jurnal Kajian Pendidikan Sains
type: channel
description: SPEKTRA: Jurnal Kajian Pendidikan Sains is accredited national journal (Sinta 3) that published by Department of Physics Education, Faculty of Education and Teaching, Universitas Sains Al-Quran. Number of ISSN are E-ISSN: 2548-642X and P-ISSN:2442-9910. This journal reviews the results of research or conceptual studies in the science and applied science field. First published in 2015 and published every 6 months.
publisher: Program Studi Pendidikan Fisika, FITK, UNSIQ
language: en
publication name: SPEKTRA: Jurnal Kajian Pendidikan Sains
issn: 2548-642X
items: POTENSIAL COMBINATION OF MATOA LEAF EXTRACT (Pometia pinnata) AND MORINGA LEAF EXTRACT (Moringa oleifera) AS ANTIDIABETIC IN ALLOXAN-INDUCED MICE (Mus musculus)
items: EXPLORING THE ESD-INTEGRATED PHYSICS E-MODULES NEEDS OF CULTIVATING HIGH SCHOOL STUDENTS' SUSTAINABILITY AWARENESS ABOUT GLOBAL WARMING IN WETLAND ECOSYSTEMS
items: MODEL INFLUENCE PjBL BASED ON STEAM AND ENVIRONMENTAL CARE ATTITUDE TOWARDS COGNITIVE RETENTION OF STUDENTS OF GRADE IV SCIENCE SUBJECT AT SDN RAGUNAN 08
items: THE INFLUENCE MODEL PROJECT BASED LEARNING (PjBL) AND DIGITAL LITERACY ON THE CRITICAL THINKING ABILITY OF GRADE V STUDENTS IN SCIENCE SUBJECT ELEMENTARY SCHOOL
items: ANALYSIS OF CYANIDE ACID (HCN) CONTENT IN SHIP BAMBOO SHOOTS (GIGANTOCHLOA SCHORTECHINII) AS FOOD INGREDIENTS
items: EFFORTS TO IMPROVE STUDENTS’ DATA INTERPRETATION AND COLLABORATION SKILLS THROUGH THE IMPLEMENTATION OF THE DISCOVERY LEARNING MODEL
items: THE USE OF STANDING BOARD TO IMPROVE STUDENT LEARNING OUTCOMES IN SCIENCE EDUCATION IN ELEMENTARY SCHOOLS
items: THE EFFECTIVENESS OF THE HEAT AND ITS TRANSFER E-MODULE BASED ON PROBLEM-BASED LEARNING TO IMPROVE STUDENTS' PROBLEM-SOLVING SKILLS
items: DEVELOPMENT OF PROBLEM-BASED LEARNING SCIENCE E-MODULE INTEGRATED WITH ETHNOSCIENCE OF PENCAK SILAT TO IMPROVE STUDENTS' SCIENCE PROCESS SKILLS
items: DEVELOPMENT OF PHYSICS E-LEARNING BASED ON PROBLEM BASED LEARNING TO IMPROVE STUDENTS' HIGH-LEVEL THINKING ABILITIES AND LEARNING INTERESTS IN FLUID MATERIALS
items: IMPLEMENTATION OF INTEGRATED PJBL-STEM AND SEL TO ENHANCE STUDENTS CREATIVE THINKING SKILLS
items: THE DEVELOPMENT OF EDUCATION FOR SUSTAINABLE DEVELOPMENT (ESD) IMPLEMENTATION IN CHEMISTRY EDUCATION: A LITERATURE REVIEW
items: UTILIZATION OF INDUCTION HEATING IN ELECTRIC STOVE APPLICATION
items: https://ojs.unsiq.ac.id/index.php/spektra/article/view/8900
items: The THE INFLUENCE OF PROJECT-BASED LEARNING MODEL ASSISTED BY HOTS-BASED INTERACTIVE STUDENT WORKSHEETS (LKPD) ON CRITICAL THINKING
items: IMPLEMENTATION OF PROJECT-BASED SCIENCE LEARNING ON CRITICAL THINKING SKILLS OF ELEMENTARY SCHOOL STUDENTS
items: MEMBRANE FILTRATION TECHNOLOGY FOR WATER TREATMENT IN TERMS OF MEMBRANE PERFORMANCE, ENERGY CONSUMPTION, AND COST ASPECTS: A REVIEW
items: EFFECTIVENESS OF AQUAPARTBOX NATURAL SCIENCE IIC IN SUBSTANCE AND PARTICLE MODEL SUB MATERIAL CLASS 7
items: THE INFLUENCE OF SCIENCE, ENVIRONMENT, TECHNOLOGY AND SOCIETY MODELS (SETS) ON ENVIRONMENTAL LITERACY IN ELEMENTARY SCIENCE LEARNING
items: ANTIBACTERIAL ACTIVITY TEST OF BANANA PEEL ESSENTIAL OIL AGAINST ESCHERICHIA COLI (E. COLI) BACTERIA IN BIOCHEMISTRY LABORATORYUM
items: AK ETHNOSCIENCE APPROACH TO MEASURE CREATIVE THINKING SKILLS PROFILE
items: IMPROVEMENT OF STUDENTS' SCIENCE PROCESS SKILLS IN SCAFFOLDING-BASED PROBLEM BASED LEARNING ON THE MATERIAL OF TRAVELLING WAVES AND STATIONARY WAVES
items: THE GLOBAL RESEARCH MAPPING ON ENVIRONMENTAL AWARENESS IN EDUCATION: BIBLIOMETRIC ANALYSIS 2015-2025
items: EVALUATION OF STUDENT ABILITY IN DRAWING CONCEPT MAPS: A STUDY OF CONCEPT MAP STRUCTURE AND QUALITY
items: METACOGNITION-BASED DISCOVERY LEARNING: EFFECTS ON CRITICAL THINKING AND COGNITIVE ABILITY IN DYNAMIC FLUID STUDY
items: ASSESSING INVENTIVE THINKING USING RASCH MODEL
items: THE VALIDITY AND FEASIBILITY OF A HANDBOOK ON THE PROPERTIES OF LIGHT AND REFLECTIONS INTEGRATED WITH 1-SIDE HOLOGRAM LEARNING MEDIA FOR MIDDLE SCHOOL STUDENTS
items: https://ojs.unsiq.ac.id/index.php/spektra/article/view/8878
items: INSTANT NASI TUM INNOVATION WITH VARIATION MATERIAL TO IMPROVE CHEMICAL REACTION LEARNING PROCESS AND STUDENT PRENEURSHIP
items: PERCEPTIONS (LECTURE, TEACHER, AND STUDENTS) ON SCIENCE TEACHING PROCESS FOR PPL PHYSICS STUDENT

POTENSIAL COMBINATION OF MATOA LEAF EXTRACT (Pometia pinnata) AND MORINGA LEAF EXTRACT (Moringa oleifera) AS ANTIDIABETIC IN ALLOXAN-INDUCED MICE (Mus musculus)
type: item
description: Diabetes mellitus (DM) is a chronic metabolic disease whose prevalence continues to increase globally. Plant-based alternative therapy is becoming an increasingly popular option due to its minimal side effects. This study aims to test the potential of a combination of matoa (Pometia pinnata) and Moringa (Moringa oleifera) leaf extracts as an antidiabetic in alloxan-induced male mice (Mus musculus). The study was conducted experimentally with five treatment groups, including negative control, positive control, and three groups of extract combination doses (100, 225, and 300 mg/kg BB). Phytochemical tests showed the content of active compounds alkaloids, flavonoids, and steroids in the combination of extracts. Blood glucose level test results showed that the combination dose of 300 mg/kg BB (Dose III) was able to reduce blood glucose levels significantly and had comparable effectiveness with glibenclamide as a standard drug. Statistical analysis (One Way ANOVA and Post Hoc Bonferroni) confirmed that Dose III showed a significant difference compared to the lower dose, and was not significantly different from the positive control.Beyond these results, this study contributes new insights by highlighting the synergistic effect of combining two medicinal plants, providing a scientific basis for the development of standardized herbal formulations as potential alternatives in diabetes management.
subject: Article
  topic: section
subject: Alloxan
  topic: keywords
subject: Antidiabetik
  topic: keywords
subject: Matoa leaf extract
  topic: keywords
subject: Mice
  topic: keywords
subject: Moringa leaf extract
  topic: keywords
creator: Siti Haryani Muayadah
creator: Aceng Ruyani
creator: Afrizal Mayub
creator: Bhakti Karyadi
creator: Rendy Wikrama Wardana
rights: Copyright (c)
date: 2025-09-30
publication date: 2025-09-30
starting page: 210
ending page: 221
doi: 10.32699/spektra.v11i2.9611

EXPLORING THE ESD-INTEGRATED PHYSICS E-MODULES NEEDS OF CULTIVATING HIGH SCHOOL STUDENTS' SUSTAINABILITY AWARENESS ABOUT GLOBAL WARMING IN WETLAND ECOSYSTEMS
type: item
description: The rapid advancement of technology and the pressing challenges of global warming demand innovative approaches in physics education to foster students’ sustainability awareness. However, current learning practices often fail to integrate these aspects effectively, creating a critical gap that must be addressed. The aim of this research is to identify the gaps in technology integration, sustainability awareness, and teaching materials in the context of physics education. This study employed a descriptive quantitative method involving 45 high school students and 3 physics teachers from a state high school in Ogan Komering Ulu Timur, as well as relevant teaching documents. Data were collected through questionnaires, document studies, and sustainability awareness assessments, and analyzed using descriptive statistics. The results revealed low integration of technology in physics learning, limited sustainability awareness among students, and insufficient alignment of teaching materials with sustainability topics. These findings underscore the urgent need for the development of ESD-integrated physics e-modules that bridge these gaps. It is concluded that such e-modules could significantly enhance students’ understanding of global warming and its impact on wetland ecosystems, and the study recommends further development of technology-based teaching tools, teacher training programs, and the creation of relevant educational materials to improve sustainability awareness among students.
subject: Article
  topic: section
subject: ESD
  topic: keywords
subject: E-Modules
  topic: keywords
subject: Sustainability Awareness
  topic: keywords
subject: Global Warming
  topic: keywords
subject: Wetland Ecosystems
  topic: keywords
creator: Apit Fathurohman
creator: Esti Susiloningsih
creator: Kistiono Kistiono
creator: Lintang Auliya Kurdiati
creator: Ina Agustina
creator: Lita Luciana
rights: Copyright (c)
date: 2025-09-30
publication date: 2025-09-30
starting page: 200
ending page: 209
doi: 10.32699/spektra.v11i2.8227

MODEL INFLUENCE PjBL BASED ON STEAM AND ENVIRONMENTAL CARE ATTITUDE TOWARDS COGNITIVE RETENTION OF STUDENTS OF GRADE IV SCIENCE SUBJECT AT SDN RAGUNAN 08
type: item
description: Research on project based learning includes Project Based Learning (PjBL), is a learning model that involves student in designing or creating projects that are innovative, useful in solving problems in daily life, and emphasizing contextual assessment learning. This study aims to find out whether or not there is an influence of the STEAM-based PjBL model and environmental care attitudes on students' cognitive retention in elementary school grade IV science learning. The learning model used in this study is an experimental method using a 2 x 2 factorial design design. The population of this study was 62 people, consisting of 31 students who learned using the STEAM-based PjBL model and 31 students who learned using the PjBL learning model. The research instrument was in the form of a questionnaire and multiple-choice test. The first hypothesis test using the Two-Path Anava Test was obtained with a sig value of Fcalculated > Ftable or 19.94 > 4.105, then Ho was rejected and H1 was accepted, meaning that there was an influence of the STEAM-based PjBL learning model on the cognitive retention of grade IV students of SDN Ragunan 08. The second hypothesis test using the Two-Path Anava Test obtained a value of Sig. Ftables, the value of Fcalculated > Ftable or 33.49 > 4.105, then Ho was accepted and H1 was rejected, meaning that there was no influence of environmental care on the cognitive retention ability of grade IV students of SDN Ragunan 08. The third hypothesis test using the Two-Path Anava Test obtained a value of Sig. Fcalculate < Ftable or 3.64 < 4.105, then Ho rejected and H1 accepted, meaning that there was no interaction between the STEAM-based PjBL learning model and the attitude of environmental care towards the cognitive retention ability of grade IV students at SDN Ragunan 08.
subject: Article
  topic: section
subject: Critical thinking skills
  topic: keywords
subject: Digital literacy
  topic: keywords
subject: Project based learning
  topic: keywords
creator: Oktavia Widyawati
creator: Irdalisa Irdalisa
creator: Tri Isti Hartini
rights: Copyright (c)
date: 2025-10-28
publication date: 2025-10-28
starting page: 282
ending page: 296
doi: 10.32699/spektra.v11i2.9777

THE INFLUENCE MODEL PROJECT BASED LEARNING (PjBL) AND DIGITAL LITERACY ON THE CRITICAL THINKING ABILITY OF GRADE V STUDENTS IN SCIENCE SUBJECT ELEMENTARY SCHOOL
type: item
description: This study aims to determine and describe the influence of learning models Project Based Learning (PjBL) on Critical Thinking Skills, the influence of Digital Literacy to Ability and there is an interaction between Project Based Learning (PjBL) with Digital Literacy. The method used is a quantitative method. The instrument used is a test. The test was given to students of SD Negeri Tomang 03 class VA and VB. The data analysis used was a two-way ANOVA test. The results of this study showed that there was an influence and significance between the influence of the learning model Project Based Learning (PjBL) on students' critical thinking skills with Fhit values ​​> Ftab 5.97> 4.14, there is a significant influence on digital literacy on students' critical thinking skills with Fhit > Ftab 33.41 > 4.14, there is no interaction between Project Based Learning (PjBL) with Digital Literacy students with Fhit < Ftab -0.27 < 4.14. Learning model Project Based Learning (PjBL) has an influence on students' critical thinking skills, so that Project Based Learning (PjBL) will contribute to students' critical thinking skills. Digital Literacy has an influence on students' critical thinking skills, so that with digital literacy which will contribute to students' thinking skills. The higher the digital literacy, the higher the students, then students' critical thinking skills will also increase.
subject: Article
  topic: section
subject: Critical Thinking Skills
  topic: keywords
subject: Digital Literacy
  topic: keywords
subject: Project Based Learning
  topic: keywords
creator: Nurwihayati Nurwihayati
creator: Tri Isti Hartini
creator: Irdalisa Irdalisa
rights: Copyright (c)
date: 2025-10-24
publication date: 2025-10-24
starting page: 330
ending page: 341
doi: 10.32699/spektra.v11i2.10098

ANALYSIS OF CYANIDE ACID (HCN) CONTENT IN SHIP BAMBOO SHOOTS (GIGANTOCHLOA SCHORTECHINII) AS FOOD INGREDIENTS
type: item
description: This study aims to determine the effect of different lengths of soaking on cyanide acid (HCN) content in ship bamboo shoots (Gigantochloa schortechinii) which are the main ingredient in making Lemea. Lemea is a specialty food of the Rejang tribe in Bengkulu Province where the main ingredient of Lemea is fermented chopped bamboo shoots (young bamboo). This study used a completely randomized design (CRD) with five repetitions and four treatment levels, namely. A = no treatment/control, B = 4 days soaking, C = 5 days soaking, D = 6 days soaking and E = 7 days soaking. The results of the analysis showed that different lengths of soaking time had an effect on reducing cyanide acid (HCN) content. The highest to lowest average cyanide acid (HCN) content was obtained from treatments A (70.066 ppm), B (53.759 ppm), C (42.374 ppm), D (29.739) and E (16.458 ppm). The best cyanide acid (HCN) content was obtained in the immersion treatment for 7 days with an average HCN content of 16.458 ppm, this result is highly recommended because the HCN content is safe for consumption according to FAO (Food and Agriculture Organization).
subject: Article
  topic: section
subject: Cyanide acid (HCN)
  topic: keywords
subject: Lebong
  topic: keywords
subject: Lemea
  topic: keywords
subject: Ship bamboo shoot
  topic: keywords
subject: Soaking
  topic: keywords
subject: (Gigantochloa schortechinii)
  topic: keywords
creator: Roleka Julia Marcellina
creator: Bhakti Karyadi
creator: Rendy Wikrama Wardana
creator: Euis Nursa’adah
creator: Afrizal Mayub
rights: Copyright (c)
date: 2025-10-20
publication date: 2025-10-20
starting page: 320
ending page: 329
doi: 10.32699/spektra.v11i2.9702

EFFORTS TO IMPROVE STUDENTS’ DATA INTERPRETATION AND COLLABORATION SKILLS THROUGH THE IMPLEMENTATION OF THE DISCOVERY LEARNING MODEL
type: item
description: The mastery of students data interpretation and collaboration skills in schools is still relatively low, falling into the “fair” category. Therefore, strategies are needed to improve these skills. This study aims to improve students’ data interpretation skills and collaboration skills through the implementation of the discovery learning model. The research employed a Classroom Action Research (CAR) design conducted in two cycles. The subjects were 11 grade X ATPH students. Data were collected using a data interpretation skills test and a collaboration observation sheet, both of which had been content-validated by experts. The results showed that teacher activity increased from 82% in Cycle I to 88% in Cycle II, while student activity increased from 80% to 84%. The average student collaboration skills improved from 54% in the pre-cycle to 66% at the end of Cycle I, and further increased to 72% at the end of Cycle II, with all indicators falling into the collaborative category. Data interpretation skills also showed improvement, with the class average rising from 68% in Cycle I to 77% in Cycle II. These findings indicate that the implementation of the discovery learning model is effective in enhancing students’ data interpretation and collaboration skills. This model can serve as an alternative instructional strategy to foster the development of data interpretation and collaboration skills in the classroom.
subject: Article
  topic: section
subject: CAR
  topic: keywords
subject: Data–Collab Skills
  topic: keywords
subject: DL
  topic: keywords
creator: Devni Gusliza Sari
creator: Azizahwati Azizahwati
creator: Zulirfan Zulirfan
rights: Copyright (c)
date: 2025-10-20
publication date: 2025-10-20
starting page: 309
ending page: 319
doi: 10.32699/spektra.v11i2.10099

THE USE OF STANDING BOARD TO IMPROVE STUDENT LEARNING OUTCOMES IN SCIENCE EDUCATION IN ELEMENTARY SCHOOLS
type: item
description: Science education in elementary schools often faces challenges in creating an engaging and meaningful learning environment. One of the main obstacles is the use of lecture-based methods, which make students less active and result in low learning outcomes. This study aims to evaluate the use of standing boards as an alternative visual learning medium in improving student learning outcomes on the subject of animal classification based on habitat and reproduction methods. The study was conducted using the Classroom Action Research (CAR) method, consisting of two cycles in Grade VI of SD Negeri Lembursitu, Sukabumi City. The instruments used included achievement tests and observation sheets for student and teacher activities. The results showed an increase in the average student score from 68 in the pre-cycle to 76 in cycle I, and reached 85 in cycle II. Student learning activities also showed positive development in engagement and participation during the learning process. In conclusion, the use of standing boards proved effective in improving students' science learning outcomes and fostering a more interactive and enjoyable learning process.
subject: Article
  topic: section
subject: Elementary School
  topic: keywords
subject: Learning Media
  topic: keywords
subject: Learning Outcomes
  topic: keywords
subject: Science
  topic: keywords
subject: Standing Board
  topic: keywords
creator: Aryo Bhimo Yusup
creator: Din Azwar Uswatun
rights: Copyright (c)
date: 2025-10-20
publication date: 2025-10-20
starting page: 297
ending page: 308
doi: 10.32699/spektra.v11i2.9808

THE EFFECTIVENESS OF THE HEAT AND ITS TRANSFER E-MODULE BASED ON PROBLEM-BASED LEARNING TO IMPROVE STUDENTS' PROBLEM-SOLVING SKILLS
type: item
description: The purpose of this study is to analyze the effectiveness of the e- modul of heat and its transfer based on Problem Based Learning (PBL) to improve the problem-solving skills of junior high school students who still have low skills. The research method used was quasi-experimental with a nonequivalent pretest-posttest control group design. The population used was seventh grade students at SMPN 2 Purwosari Bojonegoro. The sampling technique used was cluster random sampling. The research sample consisted of classes VIIA, VIIB, and VIIC with a total of 96 students.The research instrument was form of a problem-solving skills test consisting of 5 description questions. The sampling technique uses random sampling in which. The data analysis technique was used ANCOVA test and N-Gain score analysis. The ANCOVA results test is obtained a significance value of 0.000<0.05. This data shows that the use of e-modules has a significant influence on students' problem-solving skills. Based on the N-Gain score, were clearly showed that the use of e-modules provided higher improvement in problem-solving skills than the PPT in experiment class in the control class. The e-module class obtained a score of 0.31 (Identify), 0.52 (Define), 0.56 (Explore Strategies), 0.71 (Anticipate), and 0.76 (Look Back). Three indicators were in the medium category, and two indicators were in the high category. In contrast, control class reaches the low to medium category, and the control class is mostly in the low category. Based on this data, it can be concluded that the use of the heat and its transfer e-module based on PBL has proven to be effective in improving the problem-solving skills of junior high school students and helping students better understand concepts, as well as training them to think critically and reflectively.
subject: Article
  topic: section
subject: Effectiveness
  topic: keywords
subject: E-Module
  topic: keywords
subject: Heat and Its Transfer
  topic: keywords
subject: PBL
  topic: keywords
creator: Euis Puspitasari
creator: Baskoro Adi Prayitno
creator: Lina Mahardiani
rights: Copyright (c)
date: 2025-10-10
publication date: 2025-10-10
starting page: 270
ending page: 281
doi: 10.32699/spektra.v11i2.9882

DEVELOPMENT OF PROBLEM-BASED LEARNING SCIENCE E-MODULE INTEGRATED WITH ETHNOSCIENCE OF PENCAK SILAT TO IMPROVE STUDENTS' SCIENCE PROCESS SKILLS
type: item
description: The integration of local culture into science learning has become increasingly important to enhance contextual understanding, foster student engagement, and strengthen the relevance of scientific concepts in daily life. However, many learning resources still lack meaningful connections between scientific material and students’ cultural backgrounds, which may limit their motivation and science process skill development. To address this gap, this study aims to develop and evaluate a science e-module based on the Problem-Based Learning (PBL) model integrated with pencak silat ethnoscience, focusing on the topic of the human respiratory system.to develop a Problem-Based Learning (PBL) e-module integrated with ethnoscience pencak silat to improve students' science process skills in respiratory system material. The development model employed a 4-D model (Define, Design, Develop, Disseminate). The e-module was developed based on the needs analysis results, designed according to the structure and format of digital learning media, and validated by material, media, learning, and language experts. The instrument's validity was analyzed using Aiken's V, with results ranging from 0.84 to 0.91, indicating high validity. The product was tested through limited and medium-scale trials, involving 2–3 teachers and 6–24 students, which resulted in positive responses with average percentages above 87%. The effectiveness test through pretest and posttest in experimental and control classes across three schools showed significant improvements in the experimental class. Data analysis using independent sample t-tests indicated significant differences in posttest scores (p < 0.05). The developed e-module proved to be effective, practical, and valid in enhancing students' science process skills, Integrating scientific concepts with local cultural wisdom through pencak silat not only enriches students’ contextual understanding of science but also fosters cultural appreciation, strengthens iden…
subject: Article
  topic: section
subject: E-Module
  topic: keywords
subject: Ethnoscience
  topic: keywords
subject: Pencak Silat
  topic: keywords
subject: Problem-Based Learning
  topic: keywords
subject: Science Process Skills
  topic: keywords
creator: Junartiah Junartiah
creator: Sri Retno Dwi Ariani
creator: Umi Fatmawati
rights: Copyright (c)
date: 2025-10-10
publication date: 2025-10-10
starting page: 257
ending page: 269
doi: 10.32699/spektra.v11i2.9864

DEVELOPMENT OF PHYSICS E-LEARNING BASED ON PROBLEM BASED LEARNING TO IMPROVE STUDENTS' HIGH-LEVEL THINKING ABILITIES AND LEARNING INTERESTS IN FLUID MATERIALS
type: item
description: One of method increase ability think level tall that is with application of suitable learning media For competence 21st century one of them is e-learning. E-learning in research This developed with the PBL learning model which consists of above five syntax with objective capable increase HOTS skills and interests Study students . Based on results analysis needs carried out by researchers obtained that 91.5% of students interested For learning with using e-learning. Research This aiming For describe development e-learning physics based on problem based learning , acquiring e-learning physics that is feasible and practical For used in learning physics . Physics e-learning validated by 3 validators using sheet evaluation validity , as well as tested practicality by 3 teachers and 20 participants educate use sheet evaluation practicality . Research results show that e-learning physics based on problem based learning declared very worthy by the validator with mark validation 3.49 for material , 3.51 for media and 3.52 for pedagogy . Besides That based on practicality test results obtained the average value of teacher practicality is 88.00 (very practical ) and the average practicality is 88.00 (very practical). student 89.50 (very practical ).
subject: Article
  topic: section
subject: Ability think level high
  topic: keywords
subject: Development
  topic: keywords
subject: Interest Study
  topic: keywords
subject: Physics E-learning
  topic: keywords
subject: Problem based Learning
  topic: keywords
creator: Yoli Wilanda Fitri
creator: Fakhruddin Fakhruddin
creator: M Rahmad
rights: Copyright (c)
date: 2025-10-10
publication date: 2025-10-10
starting page: 245
ending page: 256
doi: 10.32699/spektra.v11i2.9700

IMPLEMENTATION OF INTEGRATED PJBL-STEM AND SEL TO ENHANCE STUDENTS CREATIVE THINKING SKILLS
type: item
description: The ability to think creatively is a necessary skill for students as a basis for thinking, with indicators of fluency, flexibility, originality, and elaboration. Therefore, a learning design is needed as a solution to train students abilities in generating many ideas smoothly, providing unique ideas, and relating their learning experiences as 21st century competencies. This study aims to describe the implementation process of PjBL-STEM integrated with SEL using a mini-planetarium product and analyze its impact on improving students creative thinking skills during the learning process. The learning process was implemented through several stages orientation, planningand designing, project creation, testing and presentation, and evaluation. This research is a case study with a single case design, which consists of determining and defining questions, determining research design and instruments, determining techniques and collecting research data, and making a final report. Data collection techniques were conducted through interviews, observations, and student questionnaires. The research instruments used were interview guidelines, learning implementation observation sheets, and student reflection questionnaires. Data analysis techniques were carried out by applying qualitative descriptive analysis and percentage calculation. The findings indicate that integrating PjBL-STEM with SEL through the mini-planetarium project effectively enhanced students creative thinking, with the strongest gains observed in fluency (89%) and flexibility (81%), while originality (74%) and elaboration (71%) showed good progress but require further reinforcement. Results on the implementation process are still under analysis and will provide important insights for refining instructional design and future classroom applications.
subject: Article
  topic: section
subject: Creative Thinking
  topic: keywords
subject: PjBL-STEM
  topic: keywords
subject: Social Emotional Learning
  topic: keywords
subject: Solar System
  topic: keywords
creator: Amelia Novita Sari
creator: Agung Mulyo Setiawan
creator: Sitti Djuwarijah
rights: Copyright (c)
date: 2025-09-30
publication date: 2025-09-30
starting page: 222
ending page: 232
doi: 10.32699/spektra.v11i2.9332

THE DEVELOPMENT OF EDUCATION FOR SUSTAINABLE DEVELOPMENT (ESD) IMPLEMENTATION IN CHEMISTRY EDUCATION: A LITERATURE REVIEW
type: item
description: This study presents a systematic literature review of the implementation of Education for Sustainable Development (ESD) in chemistry education between 2012 and 2025. A total of 15 articles were analyzed, encompassing both international and national studies, with the aim of mapping theoretical models, instructional innovations, and student outcomes within the framework of ESD. The findings reveal that research in this area can be categorized into two major contributions: conceptual contributions, which focus on developing models, frameworks, and didactic theories, and practical contributions, which emphasize instructional media, laboratory modules, contextual teaching tools, and project-based learning strategies. Practical contributions dominate the literature, demonstrating significant impacts on students’ chemistry literacy, creativity, and sustainability awareness. However, competencies such as critical thinking, problem-solving, and action competence remain underexplored and insufficiently assessed. The review further highlights that while teachers and pre-service teachers generally show positive attitudes toward ESD, their understanding often remains limited to environmental dimensions, underscoring the need for more comprehensive professional preparation. These findings suggest that future research should adopt a more balanced agenda that integrates conceptual development with practical innovations, while systematically fostering a broader spectrum of sustainability competencies. In conclusion, chemistry education holds substantial potential to contribute not only to the mastery of scientific knowledge but also to the cultivation of responsible citizens equipped to address the complex challenges of sustainable development.
subject: Article
  topic: section
subject: chemistry education
  topic: keywords
subject: education for sustainable development
  topic: keywords
subject: Sustainability Competencies
  topic: keywords
subject: green chemistry
  topic: keywords
creator: Munawwarah M
creator: Hastuti Agussalim
rights: Copyright (c)
date: 2025-10-24
publication date: 2025-10-24
starting page: 342
ending page: 358
doi: 10.32699/spektra.v11i2.10315

UTILIZATION OF INDUCTION HEATING IN ELECTRIC STOVE APPLICATION
type: item
description: Electric stoves with the concept of electromagnetic induction use coils to generate magnetic fluxes that can conduct heat. This study aimed to determine how induction-based electric stoves work and the effect of working coil variants on the electromotive force of induction and the temperature of water when cooked. The research method used was an experiment with data analysis using simple and multiple linear regression. The results showed that induction-based electric stoves utilize eddy currents that arise when a ferromagnetic conductor material is placed in the working coil, thus producing heat for cooking. The effect of the working coil on the electromotive force of induction and the temperature of water when cooking uses three working coil variants, namely enamel wire with a diameter of 0.5 mm with a length of 80 m, a diameter of 0.5 with a length of 112 m and a diameter of 1.5 mm with a length of 8 m. After testing, the results showed that the coil variant with a diameter of 0.5 mm and a length of 80 m had a strong influence on the induced emf, and the coil variant with a diameter of 0.5 and a length of 112 m had a substantial impact on the temperature of the water when cooked. This study implies that optimizing the coil configuration, such as using a 0.5 mm diameter enamel wire with a length of 80 m for the induced electromotive force and a 0.5 mm diameter wire with a length of 112 m to increase the water temperature, can improve the efficiency and performance of induction-based electric stoves.
subject: Article
  topic: section
subject: Induction Cooker
  topic: keywords
subject: Coil Numbers
  topic: keywords
subject: Induction Electromotive Force
  topic: keywords
subject: Temperature
  topic: keywords
creator: Fatiatun Fatiatun
creator: Revika Tresiadi
creator: Alva Hidayatullah
creator: Suriani Abu Bakar
creator: Firdaus Firdaus
creator: Kusnanto Mukti Wibowo
rights: Copyright (c)
date: 2025-09-30
publication date: 2025-09-30
starting page: 233
ending page: 244
doi: 10.32699/spektra.v11i2.10131

https://ojs.unsiq.ac.id/index.php/spektra/article/view/8900
type: item
title: APPLICATION OF THE PJBL-STEM LEARNING MODEL ON SMOKELESS WASTE COMBUSTION DEVICE ON TEMPERATURE, HEAT, AND EXPANSION TO IMPROVE THE COGNITIVE LEARNING OUTCOMES OF STUDENTS OF CLASS VII SMPN 1 TAPUNG HULU
description: The study aims to determine the cognitive abilities of class VII students through the application of the STEM-based PjBL model using smokeless waste incinerator media and to determine the differences in cognitive abilities of classes that use the PjBL-STEM model with conventional learning. This study was conducted at SMPN 1 Tapung Hulu, Kampar Regency, Riau Province. The type of research used is Quasi Experimental Design with the Posttest Only Non-Equivalent Control Group Design method. The population of this study was 176 students. The sample in this study was 59 students, with class VII D consisting of 29 students as the experimental class and class VII A consisting of 30 students as the control class. The data collection instrument was in the form of a cognitive ability posttest consisting of 15 multiple choice questions. The data analysis technique used was descriptive analysis through the average value of student learning outcomes and inferential analysis through normality tests, homogeneity tests and hypothesis tests. The results of the descriptive analysis can be concluded by using the PjBL-STEM model on smokeless waste burners better than the control class. The results of the inferential analysis of the Hypothesis Test in this study using the independent sample T-test showed that there was a significant difference between the cognitive abilities of students. Therefore, the STEM-based PjBL models using smokeless waste burner media can be used as an alternative that can be applied in the science learning process in schools to improve students' cognitive learning outcomes.
subject: Article
  topic: section
subject: PjBL-STEM
  topic: keywords
subject: Project Based Learning
  topic: keywords
subject: STEM
  topic: keywords
subject: Temperature, Heat, Expansion
  topic: keywords
subject: Learning outcomes
  topic: keywords
creator: Yola Aprila
rights: Copyright (c) 2025 SPEKTRA: Jurnal Kajian Pendidikan Sains
date: 2025-07-20
publication date: 2025-07-20
starting page: 186
ending page: 199
doi: 10.32699/spektra.v11i1.8900

The THE INFLUENCE OF PROJECT-BASED LEARNING MODEL ASSISTED BY HOTS-BASED INTERACTIVE STUDENT WORKSHEETS (LKPD) ON CRITICAL THINKING
type: item
description: The project-based learning (PjBL) model, particularly when combined with HOTS-based interactive LKPD, is an effective method for improving critical thinking skills. This study investigates the problem of insufficient critical thinking abilities among students and assesses the impact of the PjBL model supported by HOTS- based interactive LKPD on these skills. Using a quasi-experimental pretest-posttest control group design and basic random sampling, this quantitative research employed HOTS-based assessment tools and analysis techniques to evaluate critical thinking through essay questions. The analysis involved N-Gain tests and independent sample t-tests to measure the enhancement in students' critical thinking abilities. The N-Gain results indicated an improvement of 81.14% in the experimental class (deemed effective) compared to 24.50% in the control class (deemed ineffective). The independent sample t-test showed a significance value of <0.001, which is below 0.05, leading to the rejection of the null hypothesis (Ho) and the acceptance of the alternative hypothesis (Ha). Therefore, the study concludes that the PjBL model, enhanced by HOTS-based interactive LKPD, significantly improves students' critical thinking skills.
subject: Article
  topic: section
subject: Project Based Learning; PjBL; LKPD; HOTS; Critical Thinking;
  topic: keywords
creator: Farah Yusep Azzahra
rights: Copyright (c)
date: 2025-07-05
publication date: 2025-07-05
starting page: 171
ending page: 185
doi: 10.32699/spektra.v11i1.9149

IMPLEMENTATION OF PROJECT-BASED SCIENCE LEARNING ON CRITICAL THINKING SKILLS OF ELEMENTARY SCHOOL STUDENTS
type: item
description: This study aims to determine the critical thinking skills of grade 5 students in science lessons before and after the implementation of project-based learning, describe the implementation of project-based science learning in grade 5, and identify the inhibiting and supporting factors in the learning process. The research method used is mixed methods with sequential explanatory design, which is the collection and analysis of quantitative data followed by qualitative data to strengthen the research results. The sample in this study amounted to 60 students divided into a control class of 30 students, and an experimental class of 30 students. The results showed that the average pretest score of the experimental class was 73.70, while the control class was 58.07. After treatment, namely the application of project-based learning in the experimental class, the average value of the experimental class posttest increased significantly to 84.10, while the average value of the control class posttest which was not given special treatment, increased to 67.83. The results showed that the application of project-based science learning had an influence in improving students' critical thinking skills. In addition, the results showed that the inhibiting factors of project-based learning are time constraints, limited resources, such as teaching materials, equipment and facilities, limited teacher knowledge and skills, and student resistance. While the supporting factors are the availability of resources, such as teaching materials, equipment, and facilities, teacher involvement, and collaboration between teachers and students.
subject: Article
  topic: section
subject: Critical Thinking Skills
  topic: keywords
subject: Project Based Learning
  topic: keywords
subject: Mixed Methods
  topic: keywords
creator: Ayu Mandasari
creator: Retno Triwoelandari
creator: Noor Isna Alfaien
rights: Copyright (c)
date: 2025-07-05
publication date: 2025-07-05
starting page: 157
ending page: 170
doi: 10.32699/spektra.v11i1.9246

MEMBRANE FILTRATION TECHNOLOGY FOR WATER TREATMENT IN TERMS OF MEMBRANE PERFORMANCE, ENERGY CONSUMPTION, AND COST ASPECTS: A REVIEW
type: item
description: The problems of water quality and its management are a global issue that must be resolved. Technology of membrane filtration shows the good potential of water treatment to improve water quality, eliminate harmful contaminants and efficiently restore nutrients. This article aims to give a comprehensive review of membrane filtration, consists of membrane filtration performance to remove contaminants, energy consumption, cost aspects and strategies of antifouling. Technologies in membrane filtration are microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and (reverse osmosis) RO. The results of this study indicate that, MF/UF system can effectively remove bacteria and be used as a pre-treatment before the NF/RO process. NF/RO system can remove contaminants higher than MF/UF. It can remove almost all contaminants, ions, heavy metals, viruses and pharmaceutical compounds (PhAC). However, the system is more susceptible to membrane fouling, but these problems can be solved with adequate pre-treatment. Water treatment with NF and RO offers a good alternative because its operation makes it possible to use lower energy consumption compared to conventional water treatment. Based on the cost aspect, if the virus and ion contamination are not the main target in the filtering and not for consumption, the MF/UF system is sufficient and will be more economical than using NF/RO. The finding of this study can provide insight into the effectiveness of membrane filtration technology in water treatment. Future research can develop membrane filtration technology so that it has good performance, low energy consumption and low cost.
subject: Article
  topic: section
subject: Filtration Membranes
  topic: keywords
subject: Water Treatment
  topic: keywords
subject: Energy Consumption
  topic: keywords
subject: Cost Aspects
  topic: keywords
creator: Firdaus Firdaus
creator: Eli Trisnowati
creator: Fatiatun Fatiatun
rights: Copyright (c)
date: 2025-06-30
publication date: 2025-06-30
starting page: 135
ending page: 156
doi: 10.32699/spektra.v11i1.9025

EFFECTIVENESS OF AQUAPARTBOX NATURAL SCIENCE IIC IN SUBSTANCE AND PARTICLE MODEL SUB MATERIAL CLASS 7
type: item
description: Laboratory work by using laboratory equipment. It is important to develop simple and affordable laboratory equipment for learning natural science. It is expected that the learning laboratory work will increase from 15% to almost all learners achieve. Due to this condition, students could not understand the phenomenon of natural science. Therefore, the purpose of the research 1) to design a tool for laboratory work, AquapartBox IIC 2) to measure the chances of student achievement with interaction of AquapartBox IIC. IIC was developed using the ADDIE model development research method (Analyze, Design, Development, Implementation, and Evaluation). Based on the analysis, there is potential for developing natural science IIC instructional media. At the design stage, a sketch was produced which became the basis for the development of the IIC. At the development stage, the AquapartBox IIC and learning tools were validated and tested. The validators consist of a biology lecturer, a physics lecturer and a science teacher. At this stage students are given a pre-test and post-test. The pretest score obtained was 80.14 and the posttest score obtained was 87.6. This second value is included in calculating the NGain calculation, the N-Gain obtained is 0.38. Next, a final evaluation was carried out by teachers (4.15) and students (3.89) which showed that IIC was effective.
subject: Article
  topic: section
subject: ICC
  topic: keywords
subject: Instructional media
  topic: keywords
subject: Natural science
  topic: keywords
subject: Substance and particle model
  topic: keywords
creator: Yohanes Advent Susprimadhi
creator: Marisa Christina Tapilouw
creator: Djohan Djohan
rights: Copyright (c)
date: 2025-06-13
publication date: 2025-06-13
starting page: 101
ending page: 112
doi: 10.32699/spektra.v11i1.8943

THE INFLUENCE OF SCIENCE, ENVIRONMENT, TECHNOLOGY AND SOCIETY MODELS (SETS) ON ENVIRONMENTAL LITERACY IN ELEMENTARY SCIENCE LEARNING
type: item
description: This research aims to determine the effect of implementing the Environment, Technology and Society Science learning model on Environmental Literacy in science learning in elementary schools. This research uses a Quasy Experimental Design and a form of research using Non-equivalent Design. The population of this study was 75 people, the research sample for class VA was 37 people and VB was 38 using a saturated sampling technique. Data collection techniques use interviews and observation. This research instrument uses multiple choice tests and questionnaires. This research data analysis technique uses tests of validity, reliability, level of difficulty, distinguishability, normality, homogeneity. Hypothesis testing uses paired sample t test and independent sample t test. Data was obtained from the average value of the pretest and posttest with the help of SPSS for Windows and Microsoft Excel software. Hypothesis testing used a paired sample t test which showed a result of 0.000 < 0.05 and an independent sample t test showed 0.010 < 0.05, so it can be concluded that there is significant influence of the application of the science, environment, technology and society learning model on environmental literacy in science learning in elementary schools.
subject: Article
  topic: section
subject: Science, Environment, Technology and Society Environmental Literavy Elementary Science Learning
  topic: keywords
creator: Siti Aliannisa Sukmiati
rights: Copyright (c)
date: 2025-06-16
publication date: 2025-06-16
starting page: 124
ending page: 134
doi: 10.32699/spektra.v11i1.7674

ANTIBACTERIAL ACTIVITY TEST OF BANANA PEEL ESSENTIAL OIL AGAINST ESCHERICHIA COLI (E. COLI) BACTERIA IN BIOCHEMISTRY LABORATORYUM
type: item
description: A study on the antibacterial activity of essential oil from banana peel was conducted. The research was conducted in a span of two months starting from sample collection, sample distillation process, and testing the antibacterial activity of essential oil. This study was conducted to determine the antibacterial activity of banana peel essential oil as a natural antibacterial against Escherichia coli (E. coli) bacteria considering the resistance of synthetic antibacterials to pathogenic bacteria. Isolation of essential oil in banana peel using steam distillation method and antibacterial activity test using disc paper method. The distilled essential oil was purified using anhydrous sodium sulphate (Na2SO4) to separate the oil from water and other impurities without affecting the purity of the essential oil. The results of the antibacterial activity test of banana peel essential oil against Escherichia coli (E. coli) bacteria with a concentration of 50% obtained an inhibition zone of 10.5 mm and at a concentration of 25% of 9.1 mm including the medium category. More than 50% of banana peel essential oil is thought to be more effective because at that concentration level, antibacterial compounds that have potential as antibacterial agents have reached sufficient levels.
subject: Article
  topic: section
subject: antibacterial activity banana peel essential oil Biochemistry
  topic: keywords
creator: Diah kartika sari
rights: Copyright (c)
date: 2025-06-16
publication date: 2025-06-16
starting page: 113
ending page: 123
doi: 10.32699/spektra.v11i1.8172

AK ETHNOSCIENCE APPROACH TO MEASURE CREATIVE THINKING SKILLS PROFILE
type: item
description: The urgency of research on creative thinking skills as a 21st century skill requirement for low-category high school students. The aim of the research is to determine the profile of creative thinking skills using an ethnoscience approach. The quasi-experimental method used 3 high schools with different cultural backgrounds (SMA A: City category, SMA B: Middle category, SMA C: Village category). Data collection of the Torrance Creative Thinking Test (TTCT) of 10 essay questions. Descriptive analysis techniques to determine the process of science reconstruction and the profile of creative thinking skills. The results showed that there were differences in the reconstruction and profile of students in the middle category of SMA B, the highest compared to SMA A (City) and SMA C (Village). Differences in cultural background greatly affect efforts to understand science through meaningful learning resources of ethnoscience. This approach has the opportunity and perspective of students in understanding scientific issues that are developing in society.
subject: Article
  topic: section
subject: Creative thinking skills
  topic: keywords
subject: Ethnoscience approach
  topic: keywords
subject: High schools
  topic: keywords
subject: Science learning
  topic: keywords
subject: TTCT
  topic: keywords
creator: Ahmad Khoiri
rights: Copyright (c)
date: 2025-05-30
publication date: 2025-05-30
starting page: 92
ending page: 100
doi: 10.32699/spektra.v11i1.9139

IMPROVEMENT OF STUDENTS' SCIENCE PROCESS SKILLS IN SCAFFOLDING-BASED PROBLEM BASED LEARNING ON THE MATERIAL OF TRAVELLING WAVES AND STATIONARY WAVES
type: item
description: The following study aims to investigate the improvement of students' science process skills in problem-based learning based on scaffolding, especially in the material of traveling waves and stationary waves. Using a quantitative method, the study included 35 students in class XI IPA from a public high school in Sukabumi city, which was determined using purposive sampling. The data collection process used pretest and posttest administered through science process skill assessment instrument. The N-Gain test was used to analyze the data. The study showed that there was a significant difference between the pretest and posttest scores after treatment, indicating an increase in students' science process skills supported by the normalized N-Gain value which was included in the moderate category. The increase in science process skills for indicators of observing, communicating, and concluding is categorized as moderate. While the increase for indicators of classifying, measuring, and predicting is categorized as high.
subject: Article
  topic: section
subject: Problem-Based Learning
  topic: keywords
subject: Scaffolding
  topic: keywords
subject: Science Process Skills
  topic: keywords
subject: Travelling and Stationary Waves
  topic: keywords
creator: Zahra Nadifa Elahi
creator: Saeful Karim
creator: Duden Saepuzaman
rights: Copyright (c)
date: 2025-05-10
publication date: 2025-05-10
starting page: 49
ending page: 61
doi: 10.32699/spektra.v11i1.7812

THE GLOBAL RESEARCH MAPPING ON ENVIRONMENTAL AWARENESS IN EDUCATION: BIBLIOMETRIC ANALYSIS 2015-2025
type: item
description: Although many studies have discussed the relationship between education and environmental awareness, there are still some research gaps that need attention. For example, there is no comprehensive mapping that illustrates global research trends on environmental awareness in education. The urgency of this research lies in the attempt to address the gaps in academic literature, especially the lack of studies that systematically map global research trends on environmental awareness in education. This study aims to analyse global trends in research on environmental awareness in education based on scientific publications during the period 2015-2025. This study uses a bibliometric approach. Research data is collected from the main database, namely Scopus. There are inclusion and exclusion criteria in this study. Environmental awareness in education is closely related to various aspects, including attitudes, behaviour, and sustainability policies. There are 5 main topics related to environmental awareness, namely Environmental Awareness and Environmental Education, Sustainability and Sustainable Development, Consumer Environmental Awareness and Pro-Environmental Behaviour, Environmental Attitudes and Environmental Performance, Environmental Sustainability in Education. Improving environmental education is very important to prepare future generations who are more concerned about the environment and are ready to face the challenges of sustainability. Recommendations that can be applied in the context of education in Indonesia are the integration of environmental education in the curriculum, an experience-based learning approach, encouraging pro-environmental behaviour in society, collaboration with global institutions and the use of digital technology in environmental education.
subject: Article
  topic: section
subject: Bibliometric
  topic: keywords
subject: Environmental Awareness
  topic: keywords
subject: Trends Research of Education
  topic: keywords
subject: Relationship of Keywords
  topic: keywords
subject: Network Visualization.
  topic: keywords
creator: Vika Puji Cahyani
creator: Munawwarah Munawwarah
rights: Copyright (c)
date: 2025-05-10
publication date: 2025-05-10
starting page: 62
ending page: 76
doi: 10.32699/spektra.v11i1.9031

EVALUATION OF STUDENT ABILITY IN DRAWING CONCEPT MAPS: A STUDY OF CONCEPT MAP STRUCTURE AND QUALITY
type: item
description: Concept maps are an effective tool in the learning process, enabling students to organise and structure information into a unified whole. Although there has been much research on concept maps as a learning tool, there is still limited research specifically analysing the structural patterns of concept maps and relating them to students‘ conceptual understanding or abilities. This study aims to analyse students’ abilities in constructing concept maps. This study is a quantitative descriptive study. The sample of this study were 16 students who took the basic science education course. The sample was selected using purposive sampling, namely students who had received basic chemistry material. The concept maps that had been made were then analysed based on the structural pattern used (hierarchical, network, linear, mixed) using an assessment rubric. Quantitative descriptive analysis was used to see the distribution of the pattern of students' concept maps in the form of averages, frequencies, percentages and graphic visualisations for each aspect measured in the concept maps. Based on the results of data analysis in this study, it can be concluded that most students use a hierarchical pattern (38%), followed by a network pattern (31%), a mixed pattern (25%), and a linear pattern (6%). The majority of students (62.5%) had an understanding in the very good category, 6.25% in the good category, and 12.5% in the lacking category. No students were in the very lacking category.
subject: Article
  topic: section
subject: Mind Map
  topic: keywords
subject: Concept Map
  topic: keywords
subject: Structure Pattern
  topic: keywords
subject: Ability
  topic: keywords
subject: Quantitative Descriptive
  topic: keywords
creator: Sumiati Side
creator: Vika Puji Cahyani
rights: Copyright (c)
date: 2025-05-10
publication date: 2025-05-10
starting page: 77
ending page: 91
doi: 10.32699/spektra.v11i1.9054

METACOGNITION-BASED DISCOVERY LEARNING: EFFECTS ON CRITICAL THINKING AND COGNITIVE ABILITY IN DYNAMIC FLUID STUDY
type: item
description: This research aims to investigate the effectiveness of metacognition-based discovery learning models in improving students' critical thinking skills and cognitive abilities as well as the relationship between the two variables on dynamic fluid materials. This research uses a quasi-experimental quantitative method with a nonequivalent control group design. The population of this research is all grade XI students in one of the State High Schools in Bandung City. The sample of this research was obtained using the convenience sampling technique, obtained from class XI-2 as the experimental class and class XI-4 as the control class. The instrument used to measure cognitive ability is multiple-choice test questions with 13 questions, while to measure critical thinking skills, multiple-choice test questions with 7 questions are used. The data analysis technique uses N-Gain, effect size, linear regression, and correlation analysis. The results of the research showed that there was a difference in improving cognitive ability and critical thinking skills. For the experimental class, N-Gain was obtained of 0.70 and 0.68, respectively, which was a greater increase compared to the control class, namely with N-Gain values of 0.44 and 0.36, respectively. The metacognition-based discovery learning model has an impact on improving students' cognitive abilities and critical thinking skills with effect size values of 1.83 and 1.85 respectively with high categories. Cognitive ability is quite influential in improving critical thinking skills with a correlation coefficient of 0.40.
subject: Article
  topic: section
subject: Discovery Learning Model Metacognitive-Based
  topic: keywords
subject: Critical Thinking Skills
  topic: keywords
subject: Cognitive Abilities
  topic: keywords
subject: Dynamic Fluids
  topic: keywords
creator: Alya Alimatul Zahro
creator: Parlindungan Sinaga
creator: Agus Danawan
rights: Copyright (c)
date: 2025-04-30
publication date: 2025-04-30
starting page: 22
ending page: 39
doi: 10.32699/spektra.v11i1.8877

ASSESSING INVENTIVE THINKING USING RASCH MODEL
type: item
description: This study aims to analyze the inventive thinking of students in the chemistry education study program at Sriwijaya University using Rasch modeling. This study is a quantitative study with a cross-sectional study design. This study was conducted at the Chemistry Education Study Program, FKIP Sriwijaya University. The subjects of this study consisted of 159 students from 3 active student classes of the chemistry education study program in 2024. The results of the study were analyzed using the RASCH Model with the help of the WINSTEP application, namely 1) Validity analysis (Person and item fit) shows that the Person/item fit Mean Square (MNSQ) for the inventive thinking instrument is in the range of 0.5-1.5 so that it is included in the category of "productive to use," while the reliability analysis (Person and item reliability) shows the results that r> 0.91 so that it is reliable; 2) Inventive thinking analysis (Person measure analysis) shows the results that there are 135 participants who fit/meet the Rasch modeling criteria; 3) Analysis of data bias between student generations (DIF analysis) shows that DIF only occurs in item KV3, where the probability is <0.05. This indicates that item KV3 is detrimental or beneficial to a particular generation; 4) Analysis of the science-related attitude and inventive thinking categories (Logit value of person) shows that 4.06% are in the high category, 94.3% are in the medium category, and 1.64% are in the low category; 5) Analysis of differences in inventive thinking between generations (Independent t-test) shows that the calculated t is smaller than the t table value, so there is no significant difference. The results of this study can conclude that there is no significant difference in inventive thinking ability between student levels, and most students are in the medium category.
subject: Article
  topic: section
subject: Inventive thinking
  topic: keywords
subject: Rasch Model
  topic: keywords
subject: Winstep
  topic: keywords
creator: Eka Ad'hiya
creator: Maefa Eka Haryani
creator: Rodi Edi
creator: Diah Kartika Sari
creator: Nadila Nur Savitri
rights: Copyright (c)
date: 2025-04-30
publication date: 2025-04-30
starting page: 1
ending page: 10
doi: 10.32699/spektra.v11i1.8009

THE VALIDITY AND FEASIBILITY OF A HANDBOOK ON THE PROPERTIES OF LIGHT AND REFLECTIONS INTEGRATED WITH 1-SIDE HOLOGRAM LEARNING MEDIA FOR MIDDLE SCHOOL STUDENTS
type: item
description: Based on the needs analysis conducted by the researcher, we found that 71% of students had difficulty with the properties of light and reflection material, and 75% of students preferred innovative books integrated with learning media over conventional books that were often used by teachers. Therefore, it is necessary to develop a handbook on the properties of light and reflection, which is integrated with 1-side hologram media. The purpose of this study was to develop and analyze the level of validity and feasibility of this handbook. The method used to develop the handbook is the ADDIE model (Analysis, Design, Develop, Implement, and Evaluate). To obtain the validity and feasibility, the instruments were developed and distributed to expert validators, teachers, and students. We succeeded develop the handbook and it was declared valid with a percentage of 81.5% and 95.2% from the material and media aspects. This product was also declared feasible with a percentage of 81.4% and 92.9% according to students and teachers. Therefore, these results indicate that the handbook on the properties of light and reflection integrated with 1-side hologram media has been declared valid and feasible to use in middle school students.
subject: Article
  topic: section
subject: Light & Reflection
  topic: keywords
subject: Handbook
  topic: keywords
subject: Hologram
  topic: keywords
creator: Dwita Nahru Faradisa
creator: Agung Mulyo Setiawan
rights: Copyright (c)
date: 2025-04-30
publication date: 2025-04-30
starting page: 10
ending page: 21
doi: 10.32699/spektra.v11i1.8841

https://ojs.unsiq.ac.id/index.php/spektra/article/view/8878
type: item
title: IMPLEMENTATION OF A GI TYPE COOPERATIVE LEARNING MODEL ASSISTED WITH SPACE 4D+ AR PLAYING CARD TO IMPROVE COGNITIVE LEARNING OUTCOMES OF PEKANBARU NEGERI 4 SMP STUDENTS ON EARTH AND SOLAR SYSTEM MATERIALS
description: This article aims to improve students' cognitive learning outcomes by applying the group investigation cooperative learning model assisted by space 4d+ augmented reality playing cards and to test whether there are differences in the cognitive learning outcomes of students who apply the group investigation cooperative learning model assisted by space 4d+ augmented reality playing cards with students who do not apply the group investigation cooperative learning model assisted by space 4d+ augmented reality playing cards. The target is class VII students at SMP Negeri 4 Pekanbaru for the 2022/2023 academic year, which consists of 10 classes and a total of 392 students. Data collection techniques were obtained through posttests. The results of the descriptive analysis of students' cognitive learning outcomes showed that the average difference between the experimental class and the control class was positive at 18.6. space 4d+ augmented reality playing card with classes using conventional methods with a confidence level of 95%
subject: Article
  topic: section
subject: Augmented Reality Playing Cards
  topic: keywords
subject: Group Investigation
  topic: keywords
subject: Cognitive Learning Outcomes
  topic: keywords
creator: Dean Irvanda Tri Kharisma
creator: Muhammad Nasir
creator: Fakhruddin Z
rights: Copyright (c)
date: 2025-04-30
publication date: 2025-04-30
starting page: 40
ending page: 48
doi: 10.32699/spektra.v11i1.8878

INSTANT NASI TUM INNOVATION WITH VARIATION MATERIAL TO IMPROVE CHEMICAL REACTION LEARNING PROCESS AND STUDENT PRENEURSHIP
type: item
description: Tum rice is a traditional food that is a commodity for the Wadaslintang community. This product can be processed and innovated into fast food. The aim of this research is to understand the concept of chemical reaction rates through the symptoms that occur during the process of making instant tum rice and developing it into a student entrepreneurial product. This research methods used a quantitative, using experiments, pretest and posttest, as well as product assessment methods involving experts. The results obtained are the creation of fast food tum rice, innovation in the form of fast food tum rice which is present to bridge the needs of a fast-paced lifestyle, making people tend to choose instant or fast food without sacrificing aspects of tradition and local wisdom, increasing students' understanding of chemical reaction pathways, as well as improving students' studentpreneur skills which is a strategic step to prepare them to face the challenges of the world of work and business in the future. The impact is that there is a tum rice instant solution that is long-lasting and can be prepared and enjoyed at any time. Instant tum rice is suitable for those who are busy and need fast food but still want to enjoy traditional tastes. Whether at home, the office or when traveling, instant rice tum can be a practical and filling food choice
subject: Article
  topic: section
subject: Tum rice
  topic: keywords
subject: Fast food
  topic: keywords
subject: Innovation
  topic: keywords
subject: Instant
  topic: keywords
subject: Studentpreneur
  topic: keywords
creator: Purba Rhisma Sutikno
creator: Sri Jumini
creator: P Parmin
creator: Mila Ariyani
creator: Desty Putri Hanifah
creator: Anisa Triyani
rights: Copyright (c) 2024 SPEKTRA: Jurnal Kajian Pendidikan Sains
date: 2024-12-20
publication date: 2024-12-20
starting page: 337
ending page: 346
doi: 10.32699/spektra.v10i2.8141

PERCEPTIONS (LECTURE, TEACHER, AND STUDENTS) ON SCIENCE TEACHING PROCESS FOR PPL PHYSICS STUDENT
type: item
description: The Praktik Pengalaman Lapangan (PPL) program is an effort to introduce prospective teacher students to the world of their profession. Praktik Pengalaman lapangan is one of the best programs of the Faculty of Teaching Education (FITK), Sains Al-Qur’an University in providing opportunities for its students to practice teaching directly in the field. The research is used a field research in qualitative. Qualititative is a type of research that is observing an object then data was analyzed using descriptive. This research was used questionnaire of student response to collect the data. The data of this research were analyzed using descriptive and student response. Based on the data analysis carried out, it was concluded that students had very good science teaching abilities based on the assessments of lecturers and teachers, as well as good based on student assessments of the learning process carried out by UNSIQ PPL students majoring in physics education.
subject: Article
  topic: section
subject: Science Teaching Process
  topic: keywords
subject: Praktik Pengalaman Lapangan
  topic: keywords
subject: Perceptions
  topic: keywords
creator: Nugroho Prasetya Adi
creator: Lutfatul Latifah
creator: Firdaus Firdaus
creator: Intan Masruroh Swastika
rights: Copyright (c) 2024 SPEKTRA: Jurnal Kajian Pendidikan Sains
date: 2024-12-04
publication date: 2024-12-04
starting page: 326
ending page: 336
doi: 10.32699/spektra.v10i2.7739