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Elfrianto
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+6281265748641
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INDONESIA
EduMatika: Jurnal MIPA
ISSN : -     EISSN : 28088069     DOI : -
Core Subject : Science, Education,
EduMatika : Jurnal MIPA adalah jurnal yang diterbitkan oleh Lembaga Riset Mutiara Akbar, Medan, Indonesia merupakan jurnal akses terbuka yang dapat digunakan sebagai media interaksi bagi seluruh cendikiawan di bidang Penelitian pendidikan Matematika, Biologi, Fisika dan KImia.. Jurnal ini diperuntukkan bagi, peneliti, dosen, serta mahasiswa dari berbagai institusi dan afiliasi di Indonesia.
Arjuna Subject : Umum - Umum
Articles 67 Documents
Analysis of Student Errors in Solving Math Problems for Class XII of Nursing Assistant at St. Thomas Maumere Vocational High School Diah, Mohamad Nur; Dhema, Magdalena; Ete, Agustinus Angelaus
EduMatika: Jurnal MIPA Vol. 3 No. 1 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i1.342

Abstract

This study analyzes students' mistakes in doing math problems on function limit material. This research was conducted at SMK Santo Thomas Maumere in semester 2 of the 2021/2022 academic year. This type of research is qualitative research. The subjects of the study were 3 students drawn from 26 students of class XII Nursing Assistants. The results of this study show that the types of mistakes made by students are fact, conceptual, principle, and procedural errors based on the classification of fundamental errors of mathematical objects. The factual error made by students is that students are mistaken in writing down the left limit and proper limit symbols. The misconception is that students do not understand the rules of the limit of a function. The principal error made by students is mistaken in describing a process. Finally, the procedural mistake made by the student is a mistake in writing. The factors that cause students to make mistakes in solving the function limit problem are that students do not know the left limit and proper limit symbols, students do not understand the concept of function limits, and prerequisite knowledge related to function limits owned by students is still minimal, students are not careful in solving function limit questions, and students still feel embarrassed if they ask teachers or colleagues regarding limit material that has not been understood
The Influence of Family Economic Conditions and Learning Interest on Mathematics Learning Achievement of Class IX Students of SMP Negeri 1 BandarTrading Academic Year 2022/2023 Tanjung, Faya Rainvildasa; Sidabutar, Ropinus; Manurung, Suprapto
EduMatika: Jurnal MIPA Vol. 3 No. 2 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i2.346

Abstract

The purpose of this study was to find out whether there was an effect of family economic conditions and interest in learning on the mathematics learning achievements of class IX students of SMP Negeri 1 BandarTrading T.A 2022/2023. This study uses a quantitative experimental research method. The population of this study were all students of class IX SMP Negeri 1 BandarTrading, totaling 184 students and a sample of 30 students, namely class IX-5. The instrument used was a questionnaire on the economic condition of the family as many as 20 items and a questionnaire on student interest in learning as many as 20 items. Based on data analysis of family economic conditions and students' learning interest on mathematics learning achievement, tcount > ttable (4.426 > 1.701) with a significant level of 0.05 so that H0 is rejected, Ha is accepted meaning that there is an influence of family economic conditions and students' learning interest on student mathematics learning achievement Class IX of SMP Negeri 1 Trade Dealer Academic Year 2022/2023
Development Of Stem Integrated Lkpd to Improve the Critical Thinking Ability of Class X Students Syarif, Ratih Ulfah R; Prasetyo, Erwin; Donuata, Pujianti Bejahida
EduMatika: Jurnal MIPA Vol. 3 No. 2 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i2.358

Abstract

This study aims to develop STEM-integrated LKPD in order to train students' critical thinking skills on Newton's law of gravity material so that it is feasible to use. The feasibility of LKPD is seen from the validity, practicality and data n-gain index. The research method used is a 4-D development model consisting of Define, Design, Develop, and Disseminate, but in this study it only reached the develop stage. The validity of LKPD is seen from completeness, content, presentation and language. Practicality can be seen from the responses and activities of students when learning using LKPD. This effectiveness can be seen from the increase in the test results of students' critical thinking skills which were tested limited to 28 students. Research data were analyzed in a quantitative descriptive manner. The results of the validity of LKPD are stated to be very valid with a percentage of 88.9%. LKPD is stated to be very practical with a percentage of 90%. The results of increasing critical thinking skills are expressed by an average n-gain score of 0.61 in the Medium category. From the results of the validity, practicality and n-gain index data, the LKPD developed is feasible to use.
Fun Mathematics Learning Design with an Inquiry Learning Approach to Improve Student Learning Outcomes Rajak, Faysal; Wahyuningsih, Wahyuningsih; Prasetyo, Erwin
EduMatika: Jurnal MIPA Vol. 3 No. 3 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i3.388

Abstract

This study aims to determine the design of a fun mathematics learning with an inquiry learning approach to improve student learning outcomes. This research was conducted at MTs Muhammadiyah Al-Fatah Nangahale in the second semester of the 2021-2022 academic year. The population of this study amounted to 20 students who were all studied. This research uses classroom action research method. Data collection techniques using tests and documentation. The results showed that the design of learning mathematics can please students by using an inquiry learning approach to increase student learning outcomes. In the data analysis, it shows that the first cycle of student learning outcomes with an average of 74.5 with a percentage of 80% while the second cycle of student learning outcomes with an average of 78.34 with a percentage of 85% so that from the average learning outcomes and large percentage of participants students have increased
The Influence of Parental Attention on Mathematics Learning Outcomes of Grade IX Students at Cinta Rakyat 3 Private Middle School, Pematang Siantar Simanjuntak, Lasmaria R; Sidabutar, Ropinus
EduMatika: Jurnal MIPA Vol. 4 No. 1 (2024): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v4i1.391

Abstract

This study aims to determine whether there is an influence of parental attention on the mathematics learning outcomes of class IX students at SMP Swasta Cinta Rakyat 3 Pematang Siantar. This study uses a quantitative approach, the type of research used in this study is ex post facto. The population in this study were all class IX students of SMP Swasta Cinta Rakyat 3 Pematang Siantar in the 2023/2024 academic year totaling 149 students. In sampling, the researcher used Cluster random sampling in this study, the researcher took one class, namely IX-A, so the total sample in this study was 37 students. Data were obtained from the parental attention questionnaire instrument and from document data on the mathematics learning outcomes of class IX students of SMP Swasta Cinta Rakyat 3 Pematang Siantar. The instruments used were 30 closed statement questionnaires, using a Likert scale measurement. After the calculation, the conclusion of the calculation on simple linear regression with the equation Y' = a + b X = 39.837 + 0.371X with a calculated t value = 12.412 > t table = 2.0262 with a significance level of 0.00 < 0.005. So H0 is rejected and Ha is accepted. The influence of parental attention on students' mathematics learning outcomes in class IX of SMP Swasta Cinta Rakyat 3 Pematang Siantar is 82%, which means that parental attention can influence students' mathematics learning outcomes by 82%, where another 18% can be influenced by other factors.
The Influence of the Cooperative Learning Model Type Numbered Heads Together (NHT) on the Mathematical Creative Thinking Ability of Students in Class VIII of Trisakti Private Junior High School, Pematang Siantar Sitanggang, Herni Lestaria; Sidabutar, Ropinus
EduMatika: Jurnal MIPA Vol. 3 No. 3 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i3.392

Abstract

The purpose of this study was to determine the effect of using the Numbered Heads Together (NHT) type cooperative learning model on students' mathematical creative thinking skills in class VIII of SMP Swasta Trisakti Pematang Siantar. This research design uses One-Shoot Case Study. The population in this study were all VIII grade students of Trisakti Pematang Siantar Private Junior High School T.A 2023/2024, and the sample in this study were all VIII grade students of Trisakti Pematang Siantar Private Junior High School totaling 30 students. The instruments used in this study are validity, reliability, level of difficulty of test items and distinguishing power of test items. The data obtained were then analyzed using data analysis techniques obtained the average value of the results of the Numbered Heads Together (NHT) learning model 85.63 and the average mathematical creative thinking ability of students 16.384. The results of hypothesis testing after obtaining t-count = 26.134 and t-table = 2.048. This means that the tcount is greater than the ttable which shows the hypothesis H0 is rejected and Ha is accepted. Based on this description, it is concluded that the use of the Numbered Heads Together (NHT) learning model has an influence on students' mathematical creative thinking skills in learning the Two-Variable Linear Equation System (SPLDV) in class VIII SMP Swasta Trisakti Pematang Siantar.
The Effect of Using Problem Based Learning Model (PBL) on Mathematics Learning Outcomes of Class VIII Students at SMP Negeri 2 Tapian Dolok Damanik, Delimaya; Sidabutar, Ropinus
EduMatika: Jurnal MIPA Vol. 3 No. 3 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i3.393

Abstract

The aim of this research is to determine the effect of using the Problem Based Learning (PBL) learning model on the mathematics learning outcomes of class VIII students at SMP Negeri 2 Tapian Dolok. The type of research used in this research is quantitative research in the form of quasi-experimental research with a Nonequivalent Control Group Design. The population in this study was all students in class VIII of SMP Negeri 2 Tapian Dolok T.A 2023/2024, and the sample in this study was class VIII-1 as the experimental class and class VIII-2 as the control class. The instruments used in this research are validity, reliability, level of difficulty of test items and distinguishing power of test items. The research results showed that the average score of students who used the Problem Based Learning (PBL) learning model was 72.03, while the average score of students without using the Problem Based Learning (PBL) learning model was 62.7. The mathematics learning outcomes of students who use the Problem Based Learning (PBL) learning model are higher than those without the Problem Based Learning (PBL) learning model (t_count 2.1 > t_table 1.67 with a significance level of 0.05). This it can be concluded that there is an influence of the use of the Problem Based Learning (PBL) learning model on the mathematics learning outcomes of class VIII students at SMP Negeri 2 Tapian Dolok
The Effect of Project Based Learning Model on Mathematical Problem Solving Ability of Algebraic Operation Material in Class VII SMP Negeri 3 Pematang Siantar Hutabarat, Romla Eka Monalisa; Sidabutar, Ropinus
EduMatika: Jurnal MIPA Vol. 3 No. 3 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i3.394

Abstract

This study aims to determine how the effect of using the Project Based Learning (PjBL) learning model on students' mathematical problem solving skills in class VII SMP Negeri 3 Pematang Siantar. The research method used in this study is an experimental method with a research design of Nonequivalent Control Group Design. The population in this study were all seventh grade students of SMP Negeri 3 Pematang Siantar in the 2023/2024 academic year. Sampling was carried out using purposive sampling technique, so the sample obtained was class VII-7 students totaling 30 people as a control class and class VII-10 students totaling 30 people as an experimental class. The instrument used in this study was a problem solving ability test in the form of descriptions. Based on the data analysis, it can be concluded that there is an effect of the Project Based Learning learning model on students' mathematical problem solving skills. The results of data analysis obtained the average value of the class using the Project Based Learning (PjBL) learning model of 82.87 and the average class with a conventional model of 67.50. The results of hypothesis testing obtained t_hitung = 5.507 and t_table = 2.002. If t_count is greater than t_table, the hypothesis H_(0) is rejected. Based on the previous explanation, it can be concluded that the use of Project-based learning (PjBL) learning model has an influence on students' mathematical problem solving ability on algebraic material in class VII SMP Negeri 3 Pematang Siantar.
Development Of Learning Media Using Geogebra on Class Viii Cartesian Field Material at SMP Negeri 2 Pematang Siantar Raja Guk-guk, Ivo Mariani Gress; Simamora, Rianita; Sidabutar, Ropinus
EduMatika: Jurnal MIPA Vol. 3 No. 3 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i3.395

Abstract

This research aims (1) to describe the level of validity of mathematics learning media using Geogebra on the Cartesian Plane material, (2) to assess the mastery level of teachers and the students' engagement using Geogebra on the Cartesian Plane material, and (3) to explore educators' and students' responses to the development of mathematics learning media using Geogebra on the Cartesian Plane material at SMP Negeri 2 Pematang Siantar. The research design employed is Research and Development, following the ADDIE model consisting of Analysis, Design, Development, Implementation, and Evaluation. Based on the material validation results, it falls into the highly valid category with an average of 60.5, situated in the interval 54.6 ? VR < 65. Similarly, media validation is deemed valid with an average of 82, falling within the interval 68 ? VR < 84. The validated learning media was then implemented in the teaching process. Data analysis revealed that the teacher's mastery level averaged 92, categorized as practical within the interval 74.8 ? PR < 92.4. Additionally, during the trial, the students' engagement level averaged 47, falling in the interval 44.2 ? P < 54.6. The effectiveness of the developed learning media is evidenced by the students' achievement in the eighth-grade class at SMP Negeri 2 Pematang Siantar. Out of 30 students, 25 students achieved a passing grade with a percentage of 83.4%, while 5 students did not pass, constituting 16.6%. The developed learning media meets practical criteria, receiving highly positive responses from students with an average response rate of 94.97% and positive feedback from teachers with an average response rate of 82%.
The Effect of Problem-Based Learning Model on Mathematics Problem Solving Ability of Class VII Students Junior High School 7 Pematang Siantar Jesika, Jesika; Sidabutar , Ropinus; Simamora, Rianita
EduMatika: Jurnal MIPA Vol. 3 No. 4 (2023): EduMatika: Jurnal MIPA
Publisher : Lembaga Riset Mutiara Akbar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/emju.v3i4.397

Abstract

This research aims to determine whether there is an influence of the Problem Based Learning (PBL) instructional model on the mathematical problem-solving abilities of seventh-grade students at SMP Negeri 7 Pematang Siantar. The study employs a quantitative method, specifically a one-shot case study design. The population consists of all seventh-grade students at SMP Negeri 7 Pematang Siantar for the academic year 2023/2024, totaling 288 students. Cluster Random Sampling was used to select a sample, and one class, namely VII-1, was chosen for the study, resulting in a total sample size of 30 students. Data were obtained through a questionnaire measuring students' perceptions of the Problem Based Learning model and a mathematics problem-solving ability test for seventh-grade students at SMP Negeri 7 Pematang Siantar. The instruments utilized included 12 closed-ended statement questionnaires with Likert scale measurements and 5 mathematics problem-solving ability test questions. Following calculations, the conclusion drawn from the simple linear regression analysis with the equation Y’ = a + bX = 27.228 + 0.234X is that the calculated t-value (4.196) exceeds the critical t-value (2.042) at a significance level of 0.00 < 0.05. Consequently, the null hypothesis H0 is rejected, and the alternative hypothesis H  is accepted. The influence of the Problem Based Learning instructional model on the mathematical problem-solving abilities of seventh-grade students at SMP Negeri 7 Pematang Siantar is 38.6%. This implies that the Problem Based Learning model can affect students' mathematical problem-solving abilities by 38.6%, while the remaining 61.4% can be influenced by other factors