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Edumatsains
Published by Universitas Kristen Indonesia
ISSN : 25277642     EISSN : 25277235     DOI : -
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Education Mathematics Physics
Jurnal EduMatSains merupakan wadah untuk menampung dan mempublikasikan hasil karya baik berupa hasil penelitian maupun kajian teori yang original dalam ruang lingkup pendidikan matematika dan pendidikan sains (fisika, kimia, biologi) serta ilmu matematika dan ilmu sains (fisika, kimia, biologi) bagi semua civitas academika khususnya dosen, guru, peneliti dan mahasiswa. Jurnal EduMatSains terbit sebanyak dua kali dalam satu tahun (Juli dan Januari). Jurnal EduMatSains diterbitkan Oleh Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia.
Arjuna Subject : -
Articles 359 Documents
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Concept Understanding Analysis Reviewed from Metacognition Susi Sutarni
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 9 No 2 (2025): January
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v9i2.6501

Abstract

This study aims to analyze the relationship between metacognition ability and understanding of mathematical concepts of grade VII students. This study used a qualitative descriptive method, with three students selected based on their level of metacognition ability (high, medium, low). Data were collected through written tests, in-depth interviews, and observations. The analysis is carried out based on indicators of understanding mathematical concepts, such as restating concepts, classifying objects, developing concept terms, and selecting and implementing appropriate procedures. The results of the study show that students with high metacognition skills are able to understand concepts in depth, consistently, and effectively in practical application. Students with moderate metacognition skills show quite good understanding but are less consistent. Meanwhile, students with low metacognition skills experience significant difficulties in understanding and applying mathematical concepts. These findings emphasize the importance of metacognition-based learning strategies to improve students' understanding of mathematical concepts.
Developing an Interactive E-Module Based on Flipbook for Solid Geometry Diva Nathania; Santri Chintia Purba; Jitu Halomoan Lumbantoruan
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 9 No 2 (2025): January
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v9i2.6524

Abstract

This research aims to develop an interactive E-Module based on flipbook on solid geometry material that is valid and feasible. The research method used is Research and Development (R&D). The development research model used is the level 1 development research model from Sugiyono. The research location is at SMPN 50 East Jakarta. Data collection techniques used are interviews, observations, and questionnaires. The results of the research are an interactive E-Module validated with an average material validation result from 2 validators with a percentage of 80% in the Feasible category, an average media validation result from 2 validators with a percentage of 91.8% in the Very Feasible category, and an average language validation result from 2 validators with a percentage of 88% in the Very Feasible category. Therefore, it can be concluded that the interactive E-Module based on flipbook on solid geometry material is valid and feasible for use in mathematics learning for seventh-grade junior high school students. Thus, it can be concluded that the interactive E-Module based on flipbook on solid geometry material is valid and feasible for use in mathematics learning for seventh-grade junior high school students.
Measuring the Immeasurable: Calculating the Volume of Noah's Ark Using Integrals Can Reveal the Clarity and Sufficiency of the Bible. Ruth Ririn Vania Siregar; Santri Chintia Purba; Risma Uly Manalu
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 9 No 2 (2025): January
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v9i2.6558

Abstract

Mathematics is known as a science that always uses concepts and calculations. Under the pretext that mathematics is just calculations, of course, there is a possibility that there will be a response about mathematics that has nothing to do with the story in the Bible. In fact, based on previous research, it has been stated that one of the two qualities of the Bible is Clear and Sufficient. Considering these two properties, this study aims to prove that the Calculation of the Volume of Noah's Ark using Integral can Reveal the Clarity and Adequacy of the Bible. The research method used is a descriptive research method based on biblical statements that are calculated using integrals. The final result of this study states that the Calculation of the Volume of Noah's Ark using Integral can indeed reveal the Clarity and Sufficiency of the Bible as a form of immeasurable measurement. The meaning is: 1) The clarity of the Bible regarding the Volume of Noah's Ark using Integral can be interpreted and understood with the help of the Holy Spirit. 2) The sufficiency of the Bible regarding the Volume of Noah's Ark using Integral can be interpreted and used as a guideline for every believer's life.
Using Ant Colony Optimization to Solve a Vehicle Routing Problem: Waste Transportation Routes in Bengkulu City Case Study Ramya Rachmawati; Siska Yosmar
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 9 No 2 (2025): January
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v9i2.6635

Abstract

The waste problem is one of the serious problems faced by every city in Indonesia, including Bengkulu City. To overcome the problem of waste production which continues to increase every day, the government's role is needed in efforts to transport waste with various facilities and support from the surrounding community. One effort to solve the problem of waste piling up in Temporary Disposal Sites (TPS) is to schedule effective transportation to Final Disposal Sites (TPA). To do the scheduling, one possible approach is a mathematical approach. The purpose of this research is to build a Vehicle Routing Problem (VRP) model using Ant Colony Optimization (ACO), and determine the solution of this model to determine the optimal solution to the problem of transporting waste from all TPS to TPA. This research involved 29 TPS in Bengkulu City. This model is solved using Python 2.7 programming language and PuLP modeller and CPLEX Solver. With 2000 iterations, solutions were found in a relatively short time, which is less than 10 minutes. There are 6 garbage transportation routes in Bengkulu City which are considered as a VRP problem by using ACO which can transport garbage and considering the capacity of garbage trucks. From this route, a total distance of 128 km is obtained.
Development of Science Process Skills Instrument on Ecology Material: A Validity and Reliability Study Muhammad Wahyu Setiyadi; Sofyan Syamratulangi; Ni Ketut Rapi; Putu Budi Adnyana; Swandi Swandi
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 1 (2025): July
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i1.6642

Abstract

This research uses the Theory-Based Instrument Development Model. This model develops an instrument based on existing theories to ensure that the instrument has a strong theoretical basis. The steps are determining relevant theories, compiling instrument items based on theoretical concepts, validating content with theoretical experts, and testing the reliability and validity of empirical evidence. To determine the validity of the content, the VCR (content validity ratio) and CVI (content validity index) methods are used, item validity and reliability. The result is the validity of the content, the validity of the items, and the reliability of the developed instruments are important aspects in the development of assessment instruments. The development of science process skills instruments has great significance in the context of education. This instrument helps in measuring students' ability to carry out scientific processes such as observing, classifying, measuring, communicating, inferring, predicting, identifying variables, using number, and using spice/time relation Integrated processes: formulating hypotheses, controlling variables, devining operationally, investigating and experimenting. In this study, the science process skill instrument developed obtained the result of content validity declared very valid (0.91) based on the CVR and CVI tests, and based on the empirical test of the validity of the item and reliability (0.940) , it was stated that 21 items of science process skills were in the valid and reliable category.
The Effect of Contextual Teaching and Learning Model Assisted by Physics Education Technology Simulation on Motivation and Physics Learning Outcomes Ngia Masta
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 1 (2025): July
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i1.6698

Abstract

Motivation and physics learning outcomes among students remain low. One approach to improving both aspects is the use of contextual teaching assisted by PhET. This study aims to determine whether and to what extent the application of the contextual teaching and learning model assisted by PhET influences students' motivation and physics learning outcomes. This research employs a quantitative quasi-experimental method and was conducted at SMA Negeri 71 Jakarta, with samples selected through purposive sampling. The instruments used include a questionnaire to measure learning motivation and a test to assess learning outcomes on Ohm's law, resistor circuits, and Kirchhoff's first law. Hypothesis testing using an independent sample t-test resulted in a significance value of 0.000 < 0.05, indicating a significant effect of PhET-assisted contextual learning on motivation and learning outcomes. The effect size analysis showed values of 0.289 for motivation and 0.655 for learning outcomes, categorized as moderate and high, respectively. Thus, it can be concluded that PhET-assisted contextual learning has a moderate impact on motivation and a strong influence on learning outcomes.
Implementation of Open-Ended Approach in Mathematics Learning to Improve Learning Independence of Vocational High School Students Rusdian Rifai; Turmudi; Jarnawi Afgani Dahlan; Suhendra
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 1 (2025): July
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i1.6710

Abstract

This study aims to analyze the effectiveness of mathematics learning with an open-ended approach in improving the learning independence of Vocational High School (SMK) students. This study uses a quasi-experimental method with a pretest-posttest control group design involving two groups of class XI Computer Network Engineering students (TKJ 1 and TKJ 2). The sample used was 72 students, which were divided into an experimental group and a control group. Data on student learning independence were collected through a learning independence questionnaire consisting of 36 statements that were analyzed using statistical tests with the help of the SPSS version 30 program. The results showed that the experimental group using an open-ended approach experienced a more significant increase in learning independence compared to the control group. This finding indicates that the open-ended approach is effective in improving student learning independence, which is very important in preparing them to face the dynamic world of work. However, the level of student learning independence is still in the low category, which indicates the need for the implementation of advanced strategies to further maximize the potential for student independent learning in the long term.
Analysis of Bound Carbon Content and Combustion Rate of Banana Peel Waste Biobriquettes Irving Josafat Alexander; Gloria Sirait; Ramlan Silaban; Timotius Agung Soripada; Sunggu Sirait; Adriel Yakobus Nathaniel
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 2 (2025): October
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i2.6783

Abstract

This study aims to analyze the fixed carbon content and combustion rate of briquettes made from banana peel waste as a renewable energy alternative. The experimental method was used, involving key stages such as material preparation, carbonization process, briquette molding, and testing of fixed carbon content and combustion rate. The results showed that the fixed carbon content of the produced briquettes reached 87%, indicating good combustion quality and high energy storage capacity. Additionally, the combustion rate of the briquettes varied, with Sample A having a combustion rate of 0.017 grams/s and Sample B at 0.014 grams/s. This difference suggests that Sample B has a longer combustion duration. Thus, banana peel briquettes have the potential to be an efficient and environmentally friendly alternative fuel. Further research is needed to optimize the production process and enhance briquette efficiency.
Development of an E-Module Based on the SAVI Learning Model on the Topic of Buffer Solutions Cecilia Sijabat; Ramlan Silaban; Eddiyanto; Haqqi Nasution; Susilawati Amdayani; Irving Alexander; Dimas Ridho
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 1 (2025): July
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i1.6784

Abstract

The purpose of this research focuses on the development of electronic modules (e-modules) based on the SAVI (Somatic, Auditory, Visual, and Intellectual) learning model, which specifically targets high school students studying buffer solution materials. This research uses the 4-D model development framework, including the defining, designing, and developing stages. Initial needs analysis showed a significant gap in the utilization of electronic learning media at SMA Negeri 1 Pancur Batu. The resulting e-module consists of 39 pages and is designed to meet diverse learning styles through interactive elements and multimedia aids. Validation by experts showed that the e-module was very feasible, with an average value of 78.37% material expert assessment and 88.3% media expert assessment. In addition, feedback from teachers and students showed strong engagement and effectiveness, with an average teacher assessment score of 90.75% and 89% average student assessment. This research highlights the importance of integrating modern technological advances into chemistry education to improve student learning outcomes. Keywords: Development, E-module, Buffer solution, SAVI
Reflective Thinking Reflective Thinking Ability of Junior High School Students in Solving Problems Involving Systems of Linear Equations in Two Variables: Kemampuan Berpikir Reflektif Siswa SMP dalam Memecahkan Masalah Sistem Persamaan Linear Dua Variabel Anindia Putri Azahra
EduMatSains : Jurnal Pendidikan, Matematika dan Sains Vol 10 No 1 (2025): July
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/edumatsains.v10i1.6822

Abstract

This study aims to describe the profile of students' mathematical reflective thinking in solving problems related to systems of linear equations in two variables (SLETV). The research employed a mixed-methods approach and was conducted at a junior high school in Bandar Lampung. The subjects consisted of 60 eighth-grade students. The students' test responses were analyzed, and three representative students each corresponding to one of the phases of mathematical reflective thinking related to SLETV were selected for interviews. The instruments used in this study included three items designed to assess mathematical reflective thinking ability and an interview guideline. The data were analyzed based on the phases of mathematical reflective thinking, namely reacting, comparing, and contemplating. The results indicated that the percentage of students' reflective thinking profiles was categorized as good in the reacting phase, good in the comparing phase, and fairly good in the contemplating phase.

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