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All Journal JPMI (Jurnal Pembelajaran Matematika Inovatif) (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING
Supriatna, Tatang
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Education Mathematics Other

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PEMBELAJARAN DARING MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL MELALUI PENDEKATAN CONTEXTUAL TEACHING AND LEARNING (CTL) Awaludin, Agus Muhamad; Supriatna, Tatang; Nurjaman, Adi
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 1 (2023): Januari
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i1.12980

Abstract

This study aims to examine the scenario and implementation of online learning, the reaction of teachers and students to learning, the difficulties felt by students in completing the problem, as well as the obstacles experienced by teachers when doing online learning material system of linear equations two variables using CTL approach. This study is a qualitative descriptive research. This study was conducted on 20 students of SMP Plus Darul Amanah Ciwidey. The results of the study went as planned, the teacher's reaction when the learning process got a score of 94% which included very good criteria, it can be seen from the results of teacher observation sheets carried out each learning meeting, the student's reaction to learning got an average score of 71% with a very good category. The difficulty experienced by students in working on a system of linear equations of two variables lies in the difficulty of skills, concepts, and principles. The obstacles experienced by teachers when carrying out learning are varied such as students who do not have internet quotas, expensive internet payments, signal constraints, lack of student motivation, and lack of supervision from parents during the learning process.
Analisis kemampuan pemahaman matematis siswa SMP kelas IX dalam menyelesaikan soal perpangkatan dan bentuk akar Hasanah, Anis Aulia; Supriatna, Tatang; Sari, Indah Puspita
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 5 (2023): September
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i5.17553

Abstract

Mathematical Comprehension Ability is an ability that teaches material not only as memorization but further deepens the understanding of a concept. This research is a descriptive qualitative research. This study aims to determine the criteria for mathematical comprehension ability of students in grade IX junior high school on the material of rank and root form. The subjects of this study were 7 students of Al-Amin Superior Junior High School class IX-B. The data processing techniques used consist of 1) data reduction, 2) presenting data, and 3) drawing conclusions. Data collection in this study was in the form of a written test describing mathematical comprehension skills and interviews with students and teachers. Based on the results of the study, it can be concluded that students are able to properly solve problems regarding rank and root form with an average score of 71.42 so that the mathematical comprehension ability of students of Al-Amin Superior Junior High School class IX-B is in the good category.
Pengembangan lembar kerja peserta didik menggunakan model problem based learning berbantuan liveworksheets pada materi aritmatika sosial Supriatna, Tatang; Ramdani, Rasya Asri; Nurjaman, Adi
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 6 (2023): November
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i6.19438

Abstract

This study intends to determine the feasibility and practicality of worksheets for students of Social Arithmetic material using the Liveworksheets-assisted Problem Based Learning learning model. The development model used is the 4D method which is limited to the third step which includes: define, design and develompment stages. Feasibility test data and practicality of LKPD were collected through observation and questionnaires. The feasibility of LKPD is analyzed based on the results of validation by experts and the practicality of LKPD seen from student questionnaire responses. The subjects of this study were50 students on a small scale and 30 students on a broad scale .The results of this study show that the LKPD tested is very feasible and very practical to use for learning. This is seen based on the results of validation by experts who get an average of 95% with very valid categories and the practicality of LKPD taken from student response questionnaires with a percentage of 8,567% on a small scale and 88,33% on a broad scale. This shows that LKPD uses the Liveworksheets-assisted Problem Based Learning learning model on Social Arithmetic material is very valid and practical to use.
Pengembangan LKPD menggunakan pendekatan kontekstual pada materi teorema phytagoras Royan, Salsabila Zayyana; Supriatna, Tatang
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 7 No. 1 (2024): Januari
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v7i1.20001

Abstract

This study aims to determine: the process of developing LKPD, the feasibility of the developed LKPD, the effectiveness of the LKPD and the constraints encountered when developing LKPD using the Contextual approach. The method used is research and development which is modified from the R&D research and development model through the 4D stages (Define, Design, Develop, Dessiminate). This research was conducted at Bina Mulia Mandiri Middle School with research subjects in limited trials, namely 15 students  and 30 students as subjects in a wide trial. The results showed that the feasibility of teaching materials was categorized as very feasible and practical for use at Bina Mulia Mandiri Middle School based on the results of the validator and student response questionnaires. The obstacles that were encountered during the implementation of the research were that it was difficult for students to change their study habits so far, that is, they just sat watching the teacher explain, students sometimes ignored the instructions from the researcher.
Analysis of Students’ Mathematical Creative Thinking Skills through Problem-Based Learning on High School Farida, Imas Siti; Hendriana, Heris; Supriatna, Tatang; Yuliani, Anik
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23837

Abstract

The problem in learning mathematics today is how to develop creative thinking skills and make it a goal in the mathematics learning process, students often assume that mathematics can only be understood by some students. This research aims to descriptively analyze the creative thinking abilities of students whose learning uses the Problem-Based Learning model in Statistics material. This research uses a qualitative and descriptive-analytical approach by examining the data described to get a detailed and in-depth picture of students' mathematical creative thinking abilities in statistics material. The population in this study were all students at SMA Negeri 6 Tasikamalaya with a sample of 38 students in class X-9 at SMA Negeri 6 Tasikmalaya. In this research, it was found that the average student scores on questions number 1, 2, 3, and 4 were 8.81, 8.43, 7.47, and 9.62. From this analysis, students understand better the solution to question number 4 regarding problem number 4. Then the question that has the lowest average value is question number 3 which concerns the study of questions regarding searching for upper quartile and lower quartile data. So in future research, it is hoped that we will be able to analyze students' abilities in the form of their learning outcomes to see the influence, differences, and interactions that occur in students' mathematics learning outcomes based on their gender.
Enhanching Students’ Mathematical Critical Thinking Skills through Google Sites-Assisted Problem Based Learning on Junior High School Dewi, Mera Komala; Hendriana, Heris; Supriatna, Tatang; Yuliani, Anik
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23838

Abstract

The prevalence of students experiencing difficulties in applying mathematics in their daily lives can be attributed to the predominant approach of learning mathematics as a means of applying concepts, rather than as a foundation for learning. This research aims to improve students' mathematical critical thinking skills whose learning is based on Problem-Based Learning assisted by Google Sites. This research used a quasi-experimental research method with a quantitative approach which was carried out at SMPN 2 Cilaku Cianjur with a sample of 30 students in the experimental class and 31 students in the control class on Statistics material. The testing requirements for data analysis used consist of a normality test using Kolmogorov-Smirnov assisted by SPSS software. In this research, it was found that the average score of students in the experimental and control classes was 73.76 and 64.72 on the test before learning was carried out. Then 77.87 and 68.69 on the test after learning. So the average value of N-Gain in the experimental and control classes is 0.20 and 0.10. So, inferential statistical testing shows that the improvement that occurs in students' mathematical learning in the process of critical thinking skills with the Problem-Based Learning learning model assisted by Google Sites is very optimal when compared with conventional learning. Thus, for further research, it is hoped that an analysis of the Problem-Based Learning model can be carried out in comparison with other learning models to see whether some differences and interactions occur using the Analysis of Variance test.  
Analysis of Junior High School Students' Mathematical Problem-Solving Skills in Solving Social Arithmetic Problems Mardiansyah, Dian; Hendriana, Heris; Supriatna, Tatang; Putra, Harry Dwi
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23842

Abstract

Education is the main foundation in character building and individual intellectual abilities. Mathematical problem solving ability is one of the important skills that must be mastered by students in the modern educational era, especially in the context of social arithmetic material that is often applied in everyday life. This study aims to analyze the mathematical problem solving ability of students in class VII-A at SMPN 3 Cisarua in solving social arithmetic problems. This research uses a descriptive qualitative approach with data collection methods through interviews with math teachers and observations of students during the learning process and problem solving. The data analysis process was carried out descriptively to describe the variations in students' problem solving abilities and the factors that influence these abilities. The results of the analysis show that the mathematical problem solving ability of students in class VII-A at SMPN 3 Cisarua still varies, with some students showing significant improvement after the application of the Problem-Based Learning (PBL) learning method. Factors such as student engagement in learning, understanding of mathematical concepts, and critical thinking ability affect students' mathematical problem solving ability. The application of PBL method can be one of the effective strategies to improve student engagement, understanding of mathematical concepts, and mathematical problem solving skills. In conclusion, PBL method is proven to be an effective strategy to improve students' engagement, understanding of concepts, and their mathematical problem solving skills, so it can be implemented more widely in mathematics learning.
Analysis of Students’ Errors in Solving Mathematical Critical Thinking Problems on Junior High School Sodik, Rahmat; Hendriana, Heris; Supriatna, Tatang; Putra, Harry Dwi
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23858

Abstract

Critical thinking ability is one of the important competencies that students must have in facing challenges in the information age. This research aims to identify the types of errors made by class VII junior high school students in solving critical thinking skills questions on algebra material. This research uses a qualitative descriptive approach with the research subjects were 32 students in class VII.7, data collection was carried out through written tests containing critical thinking questions. It was found that several students made mistakes in solving algebra material questions, namely 1) Not understanding the concept of algebra definition; (2) The settlement process is not systematic; (3) There is no resolution process, go straight to the answer; (4) Do not understand the meaning of the question; (5) Weak in analyzing and arguing (6) Difficulty modeling problems in algebraic form; (7) Not understanding how to calculate operations and the properties of algebraic operations; (8) No identification of questions, no collection and compilation of data in the questions; (9) Not familiar with complex multiple choice questions. This research shows that students' critical thinking skills in solving algebra problems are still low. This is caused by several factors, such as a lack of in-depth understanding of concepts, lack of process skills, and less effective study habits. To improve students' critical thinking abilities, improvements in learning need to be made, such as strengthening understanding of concepts, developing process skills, and improving study habits.
Enhancing Students’ Mathematical Critical Thinking Skills through STEM Learning on Junior High School Pratiwi, Fresty Restu; Hendriana, Heris; Supriatna, Tatang; Putra, Harry Dwi
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.23894

Abstract

This study aims to Enhancing Students' Mathematical Critical Thinking Skills Through Stem Learning On Junior High School. Critical thinking is an essential component in mathematics education, as it equips students with the ability to solve real-world problems, analyze data, and develop deeper conceptual understanding. The study adopts a quasi-experimental design with a pretest-posttest control group, involving seventh-grade students from SMPIT Mentari Ilmu. The experimental group (VII Shofiyyah) was taught using STEM-based learning, while the control group (VII Khaula) received conventional instruction. Both groups were assessed through pretests and post-tests to evaluate improvements in critical mathematical thinking skills. The data were analyzed using descriptive statistics, normality tests, and independent t-tests to determine the significance of the results. Findings indicated that the experimental group significantly outperformed the control group, with higher post-test scores reflecting greater improvement in critical thinking skills. Moreover, the students and teachers expressed positive responses to the STEM-based approach, highlighting its effectiveness in fostering engagement and higher-order thinking. The study concludes that STEM-based learning serves as an effective pedagogical strategy for enhancing critical thinking in mathematics, making it a valuable tool for junior high school education. The results suggest that this approach should be further developed and implemented to promote students' critical thinking abilities in various educational contexts.
Ethnomathematics on Ayunan Jantra in Bali: Integration of Mathematical Concepts in Culture Al-Jabar, Sheilla Zalzabilla; Fauzi, Fikri; Hidayat, Wahyu; Fitriani, Nelly; Supriatna, Tatang
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 8 No. 2 (2025): VOLUME 8 NUMBER 2, JUNE 2025
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v8i2.26861

Abstract

This research explores the concept of ethnomathematics in the ayunan jantra culture in Majalangu Village, Denpasar, Bali. Using an ethnographic approach, this research identifies the mathematical elements contained in the making, structure and use of the jantJra swing. The research was conducted through observation, interviews and documentation when the ayunan jantra was used at a Balinese traditional ceremony. The interview was conducted with Mr. I Made Semara Putra, the manager of the Subak TeBA Majalangu Educational Tourism foundation, Denpasar, Bali. Swing jantra has a philosophy about the values of life, namely the rotation of destiny that we do not know, but must be ready to live it. The main findings of this research are the application of the concepts of geometry, proportion and oscillation in the making and operation of the ayunan jantra. From the geometry aspect, the swing structure includes the position of the support, rotating shaft, and arms that refer to the principles of symmetry and balance. In addition, the measurement of the dimensions of the arms and stand shows the application of the concepts of proportion and comparison. The use of the ayunan jantra also involves the concept of oscillation where the rotating movement resembles harmonic oscillation. This research reveals that Balinese people have intuitively integrated mathematical concepts into their cultural traditions. The findings from this study offer new insights into the relationship between cultural traditions and mathematics learning that could contribute to developing ethnomathematics-based learning in schools. This research is expected to enrich culture-based mathematics learning methods and preserve the local wisdom of the Balinese people.
Co-Authors Adi Nurjaman, Adi Al-Jabar, Sheilla Zalzabilla Anik Yuliani Awaludin, Agus Muhamad Dewi, Mera Komala Farida, Imas Siti Fauzi, Fikri Harry Dwi Putra, Harry Dwi Hasanah, Anis Aulia Heris Hendriana Indah Puspita Sari, Indah Puspita M. Afrilianto Mardiansyah, Dian Nelly Fitriani, Nelly Nurlela, Euis Pratama, Aris Pratiwi, Fresty Restu Ramdani, Rasya Asri Royan, Salsabila Zayyana Sari, Laras Mawar Sodik, Rahmat Stephanie, Eveline Utari Sumarmo Wahyu Hidayat