Jurnal Ilmiah Matematika Realistik

PENGEMBANGAN E-MODUL BERBANTUAN HEYZINE FLIPBOOK BERBABSIS RME UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS DAN GROWTH MINDSET

2026-06-05T22:08:49+07:00

The purpose of this study is to develop an e-module using Heyzine Flipbook on single-variable linear equations based on Realistic Mathematics Education (RME) to improve the critical thinking skills and growth mindset of seventh-grade students at Dharma Ksatria Junior High School in Pangandaran. The background of the problem includes low thinking skills due to a lack of interactive digital media and the prevalence of a fixed mindset among students, which hinders the understanding of mathematical concepts from real-world contexts. Previous studies focused solely on critical thinking skills. This research is an R&D (Research and Development) study using the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The research subjects consisted of 2 subject matter experts, 2 media experts, 1 mathematics teacher, 5 students in a small pilot test, and 20 students in the experimental class. Data collection techniques included observation, structured interviews, validation questionnaires, critical thinking tests (pretest-posttest), user response questionnaires, and growth mindset questionnaires. Data analysis utilized the feasibility percentage (>81% highly feasible), N-Gain (>0.7 high), effect size (>1.00 strong), Shapiro-Wilk normality test, and Wilcoxon test (Sig. < 0.05). The results of the study showed that the subject matter expert validation achieved a score of 100%, and the subject matter experts scored 85% in the “highly valid” category, while the growth mindset questionnaire met the “very good” criteria. The results of the hypothesis testing led to the conclusion that “there was a significant improvement in students’ critical thinking skills after using the RME-based e-module on single-variable linear equations supported by the Heyzine flipbook.” The students’ growth mindset outcomes after using the RME-based single-variable linear equation e-module supported by the Heyzine flipbook, across each aspect of the growth mindset, were as follows: regarding belief in challenges, it fell into the “High” category; regarding belief in ability, effort, criticism, and the success of others, it fell into the “Very high” category.

KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA MELALUI MODEL PROJECT BASED LEARNING BERBANTUAN KAHOOT

2026-06-05T22:08:49+07:00

This study aims to determine the application of the Project Based Learning model to the mathematical problem-solving abilities of eleventh-grade students at SMAN I V Koto Timur. The research method used was a pre-experiment with a one-group pretest-posttest design. The research sample, namely class XI F2 as a sample class with the Kahoot-assisted Project Based Learning model. The research instrument was a descriptive test of problem-solving abilities, and data analysis used normality tests, homogeneity tests, and the wilcoxon test. The research was carried out in three stages: the preparation stage, the implementation stage, and the final stage. The novelty of this study lies in the integration of the Project Based Learning model with Kahoot as a gamified evaluation tool within the Merdeka Curriculum framework, which has not been widely studied in the context of high school mathematics learning. The results showed that students’ problem-solving abilities with the Kahoot-assisted Project Based Learning model were better than those before implementing the Kahoot-assisted Project Based Learning model. Thus, the Kahoot-assisted Project Based Learning model can be used as an innovative learning alternative to improve students’ mathematical problem-solving abilities.

PENGARUH AI GEMINI TERHADAP SELF-EFFICACY MATEMATIS SISWA SMK

2026-06-05T22:08:49+07:00

This study aims to determine the effect of mathematics learning assisted by Artificial Intelligence using AI Gemini on students’ mathematical self-efficacy in vocational high schools. This study contributes novelty by specifically examining the use of AI Gemini as an instructional support tool to improve mathematical self-efficacy among vocational high school students, a topic that has received limited attention in previous studies. The study employed a quantitative approach with a quasi experiment design using a posttest-only control group design. Participants consisted of 30 students divided into an experimental class and a control class. The experimental class received mathematics learning assisted by AI Gemini, while the control class received conventional learning without AI assistance. The research instrument used a mathematical self-efficacy questionnaire with a Likert scale adapted from Usher and Pajares. Data analysis employed descriptive statistics and an independent sample t-test using SPSS. The findings showed that students in the experimental class achieved higher mathematical self-efficacy scores than those in the control class. The experimental class obtained an average score of 53.60, while the control class obtained 32.20. The independent sample t-test results indicated a significance value below 0.05, demonstrating that mathematics learning assisted by Artificial Intelligence significantly affected students’ mathematical self-efficacy. AI Gemini supported students in obtaining a more interactive, flexible, and responsive learning experience, thereby strengthening confidence in mathematics learning.

PEMANFAATAN CHATGPT DALAM PEMBELAJARAN MATEMATIKA UNTUK MENGANALISIS PENGALAMAN BELAJAR DAN KESULITAN SISWA

2026-06-05T22:08:50+07:00

The purpose of this study was to analyze students’ learning experiences and difficulties in using ChatGPT in mathematics instruction. The study employed a descriptive qualitative approach with subjects selected through purposive sampling, specifically students who had already utilized ChatGPT as a learning tool. Data were collected through observation, semi-structured interviews and documentation. The research focused on how students used ChatGPT, their understanding of solution steps, their ability to rephrase the process and the difficulties they faced in solving math problems. The results indicated that ChatGPT use tended to be result-oriented, with students directly copying answers without understanding the solution steps. Students also struggled to comprehend explanations, rephrase the process and solve problems with varying formats. Additionally, there are differences in students’ abilities to utilize ChatGPT, leading to variations in learning experiences. These findings suggest that the use of ChatGPT has not yet fully supported the development of students’ conceptual understanding. Therefore, a more targeted management of ChatGPT usage is needed so that it does not merely focus on results but also fosters an understanding of the thinking process and concept formation in mathematics learning.

PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP HASIL BELAJAR SISWA

2026-06-05T22:08:50+07:00

Students are encouraged to actively participate in problem-solving by utilizing past knowledge through the PBL paradigm. Teachers that often talk in front of the class discourage students from voicing their thoughts and impede the growth of critical thinking abilities, in addition to seldom involve students in the mastery of subject concepts. The purpose of this study is to investigate how using the PBL approach affects the learning results of SMA Kartikatama Metro eleventh-grade students. In order to gather data for this study, an experimental method with a quantitative approach was employed. The experimental class at SMA Kartikatama Metro was instructed utilizing the PBL paradigm employing a pretest–posttest control group design. According to the findings, the implementation percentage of learning activities utilizing the PBL model was 85% at the first meeting and rose to 90% during the second. The control group, on the other hand, scored 85% in the second meeting and 71% in the first. These results suggest that student learning outcomes are significantly impacted by the PBL approach. The posttest hypothesis testing using the t-test, which yielded a computed t value of 3.14 in contrast to the t-table value of 1.99, supports this finding. The alternative hypothesis (H₁) is accepted since the computed t-value is greater than the table t-value. According to these findings, students who are taught using the PBL model obtain better learning outcomes than those who are taught using traditional teaching techniques like talks and question-and-answer sessions.

PENGEMBANGAN MEDIA PAPAN BATANG NAPIER TERHADAP PEMAHAMAN PERKALIAN DUA ANGKA DI SDN KAMALAKA

2026-06-05T22:08:50+07:00

This study aims to develop a Napier's bone learning medium for integer multiplication for fifth-grade students at SDN Kamalaka and to determine the feasibility and effectiveness of this medium in supporting the learning process. The research method used is Research and Development (R&D) with the ADDIE model, which includes the stages of analysis, design, development, implementation, and evaluation. The developed media was validated by subject matter experts and media experts, then tested on 21 fifth-grade students. The validation results showed that the Napier's Bead board media was very feasible to use, with an increase in the material validation score from 88.2% to 91.7% and an increase in the media validation score from 89% to 95.3% after revision. The students' post-test results also showed an increase in their understanding of the concept of two-digit multiplication, accompanied by high enthusiasm and motivation during the learning process.

UPAYA MENINGKATKAN KEMAMPUAN PEMAHAMAN MATEMATIS MELALUI PENDEKATAN REALISTIC MATHEMATICS EDUCATION

2026-06-05T22:08:50+07:00

This classroom action research aimed to improve the instructional process and enhance students' mathematical understanding ability through the application of the Realistic Mathematics Education (RME) approach in class XI TKJ 2 of SMK Negeri 1 Pekanbaru. A collaborative classroom action research design was used, conducted over two cycles, each consisting of planning, action, observation, and reflection. The study was carried out in the odd semester of the 2025/2026 academic year on the topics of composite functions, inverse functions, and function transformations. Data were collected through a mathematical understanding test in the form of essay questions and observation sheets documenting teacher and student activities throughout the learning process. The data were analyzed using descriptive and qualitative techniques. The results show that the implementation of the RME approach improved the learning process and increased students' mathematical understanding ability. The improvement in the learning process was indicated by the increasing quality of instruction in line with the stages of the RME approach, as reflected in the observations of teacher and student activities. In addition, the mathematical understanding test results demonstrated a gradual increase between before and after the intervention. This was evidenced by the rise in the number of students in the very high category from 2 to 12, accompanied by a decrease in those in the very low category from 19 to 4. Based on these findings, the RME approach is proven capable of improving the instructional process and enhancing the mathematical understanding ability of class XI TKJ 2 students at SMK Negeri 1 Pekanbaru in the odd semester of the 2025/2026 academic year on the topics of composite functions, inverse functions, and function transformations.

The PENGARUH PENERAPAN MODEL PROJECT BASED LEARNING TERHADAP KEMAMPUAN MENYELESAIKAN SOAL HOTS MATEMATIS SISWA

2026-06-05T22:08:50+07:00

This study aims to analyze the effect of implementing the Project Based Learning (PjBL) model on students' ability to solve Higher Order Thinking Skills (HOTS) mathematical problems at SMP Tunas Dharma. The background of this study is based on the importance of higher-order thinking skills in mathematics learning and the need for instructional models that can enhance these skills. The novelty of this research lies in the implementation of the Project Based Learning (PjBL) model to improve students' ability to solve HOTS mathematical problems in basic statistics at the junior high school level, which is examined through HOTS test results and students' responses to the learning process. This study employed a quantitative approach with an experimental design. The research subjects consisted of two classes: an experimental class that received instruction using the Project Based Learning (PjBL) model and a control class that received conventional learning. The study was conducted through several stages, namely the administration of a pre-test, the implementation of Project Based Learning (PjBL) in the experimental class and conventional learning in the control class, and the administration of a post-test to measure students' HOTS mathematical abilities after the treatment. The research instrument was a HOTS mathematical ability test that had been validated and tested for reliability. Data analysis techniques included validity and reliability tests, normality tests, homogeneity tests, descriptive statistical analysis, and the Independent Samples t-test to determine differences in HOTS mathematical abilities between the two research groups. The results showed that the data were normally distributed and homogeneous. Based on the results of the Independent Samples t-test, a significance value of p < 0.05 was obtained, indicating a significant difference between the experimental and control groups. Therefore, it can be concluded that the implementation of the Project Based Learning (PjBL) model has a significant effect on students' ability to solve HOTS mathematical problems.

MODUL AJAR BERBASIS PROBLEM BASED LEARNING DENGAN PEMBELAJARAN MENDALAM MATERI RASIO UNTUK MEMFASILITASI KEMAMPUAN PEMAHAMAN MATEMATIS MURID FASE D

2026-06-05T22:08:50+07:00

This study was conducted to facilitate students’ mathematical understanding, which remains relatively low. Students experience difficulties in understanding mathematics due to irregular learning habits and the use of instructional methods that are less engaging. The aim of this research was to create a Problem Based Learning (PBL) based teaching module with a deep learning approach on ratio material to facilitate the mathematical understanding of Phase D students, and to examine its validity and practicality. The ADDIE model analysis, design, development, implementation, and evaluation was used in this study's development research design. The module was validated by three expert validators and achieved a validation score of 94.71, demonstrating a highly valid category. The test of practicality conducted by teachers resulted in a score of 93.58, categorized as very practical. Furthermore, the small-group trial obtained a score of 88.47 and the large-group trial obtained a score of 86.27, both of which met the practical criteria. These findings support the validity and usefulness of the PBL based teaching module with a deep learning strategy on ratio content for enhancing Phase D students' mathematics comprehension.

EFEKTIVITAS GUIDED DISCOVERY LEARNING BERBANTUAN TRANSGEO BOARD TERHADAP HASIL BELAJAR MATERI TRANSFORMASI GEOMETRI

2026-06-06T12:48:14+07:00

This study aimed to examine the effectiveness of the Guided Discovery Learning model supported by the TransGeo Board in enhancing students’ mathematics learning outcomes, particularly in the topic of geometric transformations. A quantitative approach was employed using a quasi-experimental pretest–posttest control group design to compare students’ achievement before and after the intervention. The participants were Grade IX students of SMP Katolik Andaluri, divided into an experimental group and a control group, each consisting of 28 students. Data were collected through pretests and posttests and analyzed using descriptive and inferential statistics with the aid of SPSS software. The novelty of this research lies in the integration of Guided Discovery Learning with the TransGeo Board as a visual and manipulative learning tool that facilitates students’ discovery of geometric transformation concepts. The results showed that the experimental group achieved a higher average posttest score than the control group, with the difference found to be statistically significant. In addition, the N-Gain analysis indicated that the improvement in learning outcomes among students in the experimental group was categorized as high. These findings demonstrate that the implementation of Guided Discovery Learning assisted by the TransGeo Board is effective in improving students’ understanding of concepts and overall achievement in learning geometric transformations.

PENGEMBANGAN INTELLIGENT MOBILE LEARNING BERBASIS KODULAR PADA MATERI BILANGAN BULAT UNTUK MEMFASILITASI PEMAHAMAN KONSEPTUAL MATEMATIS

2026-06-06T13:31:47+07:00

Mathematical conceptual understanding is one of the essential competencies that students must possess to face the challenges of 21st-century learning. However, students’ understanding of mathematical concepts, particularly in integer material, is still relatively low. In addition, Android-based learning media that have been developed generally focus only on delivering materials and simple exercises, so they have not been able to facilitate conceptual understanding in an interactive and contextual manner. Therefore, this study aims to develop Kodular-based Intelligent Mobile Learning on integer material to facilitate students’ mathematical conceptual understanding. This study employed a Research and Development (R&D) method using the ADDIE development model, which consists of the Analysis, Design, Development, Implementation, and Evaluation stages. The study involved 35 seventh-grade students of MTs Madani Alauddin, Gowa Regency. The developed product was an Android-based learning application equipped with interactive materials, learning videos, example problems, practice exercises, quizzes, discussions, and automatic feedback features. The validation results indicated that the developed media was highly valid, with material expert validation reaching 89.25% and media expert validation reaching 91.11%. The implementation of the media also showed positive results, with student responses reaching 85.14% and teacher responses reaching 89.27%, both categorized as very good. In addition, the implementation results demonstrated high effectiveness with an N-Gain score of 0.72. The findings indicate that the Kodular-based Intelligent Mobile Learning is valid, practical, and effective in facilitating students’ mathematical conceptual understanding of integer material. Thus, the development of Kodular-based learning media can serve as an innovative solution to support interactive mathematics

UPAYA PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMP MELALUI MODEL PROBLEM BASED LEARNING

2026-06-09T10:06:14+07:00

Mathematical problem-solving skills (MPS) are one of the key competencies in mathematics education because they relate to students’ ability to solve contextual problems in everyday life. This study aims to improve the learning process and enhance students’ MPS through the implementation of the Problem-Based Learning (PBL) model. This study employs the Classroom Action Research (CAR) method, conducted in two cycles during the odd semester of the 2025/2026 academic year. The research subjects were 26 eighth-grade students from Class VIII.2 at State Junior High School 5 Tambang. Each cycle consisted of the planning, implementation, observation, and reflection stages. Data collection techniques were carried out through PBL proficiency tests in the form of essay questions as well as observation sheets of teacher and student activities. The research results showed an increase in the average PBL proficiency score of students, namely from 26.91 on the initial test to 55.66 in cycle I, and increased to 67.79 in cycle II. These findings indicate that the implementation of the PBL model is effective in improving the quality of the learning process as well as students’ mathematical problem-solving skills. The novelty of this study lies in the correlation between each PBL syntax and the indicators of mathematical problem-solving skills in the material on linear equations and inequalities with one variable in class VIII.2 at SMP Negeri 5 Tambang.