JURNAL MathEdu (Mathematic Education Journal)

Efektivitas Model Pembelajaran Inquiry Dalam Meningkatkan Kemampuan Pemecahan Masalah Soal Cerita Matematika Siswa Di SMK Swasta HKBP Padangsidimpuan

Andry Yudha Simanjuntak — 2026-07-01

Penelitian ini bertujuan untuk mengetahui efektivitas penggunaan model pembelajaran inquiry dalam meningkatkan kemampuan pemecahan masalah soal cerita matematika siswa di kelas XI SMK Swasta HKBP Padangsidimpuan. Jenis penelitian yang digunakan adalah penelitian eksperimen, dengan metode penelitian yang digunakan adalah eksperimental, dan desain penelitian yang digunakan adalah One Group Pre-Test-Post-Test Design, sampel penelian ini berjumlah 14 orang siswa. Hasil data penggunaan model pembelajaran inquiry diperoleh nilai rata-rata 3,2 dengan kategori “Sangat Baik”. Hasil data kemampuan pemecahan masalah soal cerita matematika siswa pada materi sistem persamaan linear dua variabel sebelum menggunakan model pembelajaran inquiry diperoleh nilai rata-rata 26,92 dengan kategori “Gagal”. Selanjutnya, hasil data kemampuan pemecahan masalah soal cerita matematika siswa pada materi barisan dan deret aritmatika sesudah menggunakan model pembelajaran inquiry diperoleh nilai rata-rata 88,36 dengan kategori “ Sangat Baik”. Hasil uji normalitas data kemampuan pemecahan masalah soal cerita matematika siswa sebelum menggunakan model pembelajaran inquiry diperoleh nilai sig. 0,374 > 0,05 maka dapat disimpulkan bahwa data berdistribusi normal, dan kemampuan pemecahan masalah soal cerita matematika siswa setelah menggunakan model pembelajaran inquiry diperolah niali sig. 0,270 > 0,05, maka dapat disimpulkan bahwa data berdistribusi normal. Hasil uji homogenitas kemampuan pemecahan masalah soal cerita matematika mengguanakan uji one-way-anova diperoleh nilai sig. 0,151 > 0,05 , maka dapat disimpulkan bahwa data homogen. Hasil uji hipotesis efektivitas model pembelajaran inquiry dalam meningkatkan kemampuan pemecahan masalah soal cerita matematika siswa menggunakan uji t-test menunjukkan bahwa nilai korelasi antara dua variabel adalah 0,232 dengan sig. 0,001 < 0,05, maka Ho ditolak dan Ha diterima. Artinya “Penggunaan model pembelajaran inquiry efektif dengan kategori baik dalam meningkatkan kemampuan pemecahan masalah soal cerita matematika siswa di kelas XI SMK Swasta HKBP Padangsidimpuan”.

Pengembangan Media Pembelajaran E-Book Berbasis Etnomatematika Untuk Meningkatkan Kemampuan Penalaran Matematis Di SMP Kota Padangsidimpuan

Atikah Ilmiyanti — 2026-07-01

This study aimed to develop ethnomathematics-based e-book learning media to improve mathematical reasoning skills of seventh grade students of SMP Negeri 1 Padangsidimpuan. The development method used the ADDIE model consisting of the analysis stage, design stage, development stage, implementation stage, and evaluation stage. The subject was 34 students. The data collection techniques used validity questionnaires to test the validity of a product, student response questionnaires to test practicality, and test questions to test effectiveness. The results of the study, validity of the product of 3 validators obtained a total percentage of achievement of 89.81% (very valid category), the level of practicality of the student response questionnaire reached 91.82% (very practical category), and the average effectiveness was 96.45 (very effective category). It was concluded that ethnomathematics-based e-book learning media is very practical, effective and practical.

Efektivitas Penerapan Model Pembelajaran Improve terhadap Kemampuan Pemecahan Masalah Matematis Siswa di SMA Negeri 7 Padangsidimpuan

Intan Purnama Sari Siregar — 2026-07-01

This study aimed to know the description of the applying of the improve learning model, mathematical problem solving ability, and whether there was any effectiveness of the improve learning model on the mathematical problem solving ability at the tenth grade students of SMA Negeri 7 Padangsidimpuan. The research method was an experiment with a one-group pretest posttest design. The

sample was 24 students which taken by using cluster random sampling technique from 78 The research instrument used a problem-solving ability test and an observation sheet. The results showed that the average of using the improve learning model was 3.14 (very good) and the average mathematical problem solving ability of students before using the improve learning model was 60.20 (enough category) and after using the improve learning model 82.12 (very good). Based on the hypothesis test using a paired sample t-test, it showed a significant score of less than 0.05 (0.000 <0.50) so Ho was rejected and Ha was accepted. It was concluded the applying of the improve learning model, mathematical problem solving ability, and whether there was any effectiveness of the improve learning model on the mathematical problem solving ability at the tenth grade students of SMA Negeri 7

EFEKTIVITAS PENDEKATAN OPEN ENDED BERBANTUAN VIDEO INTERAKTIF PEMBELAJARAN UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MATEMATIKA SISWA

Khoirul Dasril — 2026-07-01

Penelitian ini bertujuan untuk mengetahui gambaran pendekatan open ended berbantuan video interaktif, kemampuan berpikir kritis siswa, dan apakah terdapat gambaran pendekatan open ended berbantuan video interaktif terhadap kemampuan berpikir kritis siswa kelas VIII-2 smp muhammadiyah 29 padangsidimpuan. Metode penelitian yang digunakan adalah eksperimen dengan desain one-group pretest-posttest. Sampel diperoleh dengan menggunakan teknik cluster random sampling yang berjumlah 16 siswa dari 50 siswa. Instrumen penelitian menggunakan tes untuk kemampuan berpikir kritis dan lembar observasi untuk mengetahui gambaran pendekatan open ended berbantuan video interaktif. Hasil penelitian menunjukkan rata-rata menggunakan pendekatan open ended berbantuan video interaktif adalah 3,6 (kategori Sangat baik) dan rata-rata kemampuan berpikir kritis siswa sebelum menggunakan pendekatan open ended berbantuan video interaktif adalah 48,43 (kategori gagal) dan setelah menggunakan pendekatan open ended berbantuan video interaktif adalah 91,79 (kategori Sangat baik). Berdasarkan uji hipotesis dengan menggunakan paired sample test menunjukkan nilai signifikansi kurang dari 0,05 (0,000 < 0,05) maka Ho ditolak dan Ha diterima. Pendekatan open ended berbantuan video interaktif pembelajaran efektif untuk meningkatkan kemampuan berpikir kritis matematika siswa di kelas viii smp muhammadiyah 29 padangsidimpuan.

IMPLEMENTASI MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISSION (STAD) TERHADAP HASIL BELAJAR MATEMATIKA SISWA SMP N 1 HALONGONAN

Lyra Oxana Harahap — 2026-07-01

This study aims to determine the effectiveness of the cooperative learning model Student Teams Achievement Division (STAD) on the mathematics learning outcomes of eighth-grade students at SMP Negeri 1 Halongonan. The background of this research is the low mathematics learning outcomes of students, which are caused by a lack of conceptual understanding, low learning motivation, and the perception that mathematics is a difficult subject. This research employed an experimental method with a One Group Pretest-Posttest Design. The research subjects consisted of 18 eighth-grade students at SMP Negeri 1 Halongonan. The research instruments included a learning outcome test and an observation sheet for learning activities. Data were analyzed using normality, homogeneity, and t-tests with the aid of SPSS version 27. The normality test results indicated that the data were normally distributed, with significance values of 0.200 > 0.05 for the pretest and 0.174 > 0.05 for the posttest. The homogeneity test showed a significance value of 0.149 > 0.05, indicating that the data were homogeneous. The average student learning outcome before applying the STAD model (pretest) was 49.83, while after its application (posttest), it increased to 83.39. The t-test results showed a significance value of 0.000 < 0.05, meaning that H₀ was rejected and Hₐ was accepted. This indicates a significant difference between students’ learning outcomes before and after implementing the STAD model. The correlation value between the two variables was 0.248, showing a positive relationship between the implementation of the STAD model and the improvement of students’ mathematics learning outcomes. Based on these results, it can be concluded that the cooperative learning model of the STAD type is effective in improving the mathematics learning outcomes of eighth-grade students at SMP Negeri 1 Halongonan.

IMPLEMENTASI MODEL PEMBELAJARAN DISCOVERY LEARNING MENGGUNAKAN ALAT PERAGA BOARD ELEMENTS OF CIRCLE (BEC) TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA

Riyan - Baharuddin — 2026-07-01

This study aims to determine the effectiveness of the Discovery Learning model using the Board Elements of Circle (BEC) teaching aid on students’ critical thinking skills in the topic of circles at MTs N 2 Padangsidimpuan. This research employed an experimental method with a non-equivalent control group design. The subjects of the study consisted of two classes, namely class VIII-6 as the experimental group and class VIII-5 as the control group, each consisting of 16 students. The research instrument was a critical thinking skills test that had been validated and tested for reliability. Data were analyzed using normality tests, homogeneity tests, and t-tests with the help of SPSS 27 software. The results showed that the data were normally distributed with an Asymp. Sig (2-tailed) value of 0.200 > 0.05, and homogeneous with Sig. values of 0.315 > 0.05 for the experimental class and 0.198 > 0.05 for the control class. The average pretest score of the experimental class was 48.8 (poor category), which increased to 89.3 (excellent category) in the posttest. Meanwhile, the control class had an average pretest score of 52 (poor category) and a posttest score of 82 (good category). The t-test results indicated a correlation value between the two variables of 0.156 with a significance level of 0.039 < 0.05, which means that Ha is accepted and Ho is rejected. Therefore, it can be concluded that the Discovery Learning model using the Board Elements of Circle (BEC) is effective in improving students’ critical thinking skills on the topic of circles at MTsN 2 Padangsidimpuan.

EFEKTIVITAS MODEL ROLE PLAYING DALAM MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA KELAS V

Wahyuni Syafitri Burhan — 2026-07-01

This research is motivated by the low mathematics learning outcomes of elementary school students caused by teacher-centered learning and lack of active student involvement. Therefore, an innovative learning model is needed that is able to increase students' understanding of concepts and activeness, one of which is through the role playing model. This study aims to determine the effectiveness of the application of the role playing model in improving the mathematics learning outcomes of grade V students. Data collection techniques are carried out through tests, observations, and documentation. The results of the study showed an increase in student learning outcomes, marked by the percentage of learning completeness that increased from 48% in the first cycle to 80% in the second cycle. In addition, teacher activities and student involvement in learning have also increased significantly. These findings show that the application of the role playing model is effective in improving mathematics learning outcomes and encouraging student activity and confidence. Thus, this model is suitable as an alternative in learning mathematics in elementary school.

Keywords— role playing, learning outcomes, math, student activities, innovative learning

PENGARUH MEDIA PEMBELAJARAN DAN TIPE KEPRIBADIAN TERHADAP PRESTASI BELAJAR MATEMATIKA SISWA SD

Safrina Harahap — 2026-07-01

This research is motivated by the low achievement of mathematics learning of elementary school students caused by the use of learning media that is less varied and has not paid attention to individual characteristics of students, especially personality types. This study aims to analyze the influence of learning media and personality type on students' mathematics learning achievement. The method used was a quasi-experiment with a 2×2 factorial design, involving 41 third grade students of SD Muhammadiyah 1 Padangsidimpuan. The research variables included learning media (interactive multimedia and magnetic boards) and personality types (introverts and extroverts). Data were collected through learning outcome tests and personality observations, then analyzed using a two-track ANOVA and Tukey's follow-up test. The results showed that there was a significant difference between the use of interactive multimedia and magnetic boards on mathematics learning achievement, where interactive multimedia provided higher results. In addition, there is a significant interaction between learning media and personality type. Interactive multimedia is more effective for introverted students, while magnetic boards are more effective for extroverted students. Thus, the selection of learning media that is suitable for the personality type of students plays an important role in increasing the effectiveness of learning and mathematics learning achievement.

Analisis Kemampuan Siswa dalam Mengolah Data Sederhana pada Pembelajaran Matematika Dasar Pendidikan Madrasah Ibtidaiyah

Liza Syahputri — 2026-07-01

This study aims to analyze the ability of MIN students in processing simple data in basic mathematics learning. The selection of this topic is based on the importance of data processing skills as a foundation for understanding statistics from an early age, yet many students still face difficulties in presenting and interpreting data. The research method used is a qualitative approach with a descriptive type. The subjects of this study were MIN students, and the data were collected through observation, tests, and documentation. The results show that students' ability in processing simple data is at a moderate level. Some students are able to present data in the form of tables, but still have difficulties in understanding and interpreting data accurately. These findings indicate the need for more innovative and interactive learning strategies. Therefore, this study is important as a basis for improving mathematics learning, especially in data processing material,

Complexity students’ ability, data processing, basic mathematics, MIN

KEMAMPUAN PEMECAHAN MASALAH DAN BERPIKIR KRITIS: ANALISIS KESALAHAN MAHASISWA PADA MATERI HOTS SMP

Ayathollah Khomeni — 2026-07-01

This study aims to analyze the problem-solving and critical thinking abilities of prospective mathematics teachers in solving Higher Order Thinking Skills (HOTS) problems on lines and angles through error analysis. The study employed a qualitative descriptive approach. The research subjects consisted of 20 fourth-semester students of the Mathematics Education Study Program at Institut Pendidikan Tapanuli Selatan (IPTS). Data were collected through HOTS geometry tests, task-based interviews, and documentation of students’ written work. Error analysis was conducted using Newman’s Error Analysis (NEA), while critical thinking and problem-solving abilities were analyzed using the FRISCO and Krulik-Rudnick frameworks. Data were analyzed using the interactive model of Miles, Huberman, and Saldaña, which includes data reduction, data display, and conclusion drawing. The results showed that students’ abilities were still in the moderate to low category. The dominant errors occurred at the transformation and process skills stages, indicating difficulties in converting visual representations into mathematical models and selecting appropriate solution strategies. In addition, students demonstrated weaknesses in critical thinking, particularly in reasoning, inference, and overview indicators. These errors were influenced by epistemological and ontogenic obstacles related to weak spatial ability and conceptual understanding of geometry. Therefore, HOTS-based learning emphasizing visualization, critical thinking, and systematic problem-solving is needed to improve prospective teachers’ mathematical abilities.

Pengembangan Media Pembelajaran Berbasis Aplikasi Fun Math pada Materi Kekongruenan pada Segi Empat di Kelas VIII SMP Negeri 7 Telaga Biru

Gusti Ngurah Satria — 2026-07-01

This research aims to develop mathematics learning media based on the Fun Math application on congruence material in quadrangles for class VIII SMP students. The Fun Math application was chosen because it follows student developments in the current technological era and its ability to present visual and interactive content. This research uses a 4-D development model which is simplified to 3-D including the stages of definition (Define), design (Design), and development (Develop). The instruments used in this research were expert validation sheets to measure the validity of the teaching materials being developed, readability test sheets, student response questionnaires, and teacher response questionnaires to measure the practicality of the teaching materials. The research results show that the learning media developed has met the validity criteria. Through validation by media experts and material experts, this media was declared suitable for use with several improvements, and the results of the revision were proven to be very feasible through a readability test of 95.36% and from the teacher response questionnaire, namely 93.3% (very practical). Apart from that, student responses to this learning media reached 98.75% (very practical). Based on the results of this research, it was concluded that the learning media, namely the Fun Math application, was valid and suitable for use in mathematics learning, especially in the material of congruence in quadrilaterals.

PENGARUH PENDEKATAN REALISTIC MATHEMATICS EDUCATION (RME) BERBASIS ETNOMATEMATIKA TERHADAP KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA

Yulia Tiara Tanjung — 2026-07-01

This research is motivated by the low mathematical critical thinking skills of students. Mathematical critical thinking ability is an important skill in mathematics education. This study aims to determine the effect of the RME approach based on ethnomathematics on mathematical critical thinking ability. The method used in this research is quantitative, with the type of research being Quasi-Experimental, and the research design is a Pretest-Posttest Control Group Design. The population of this study is the students of SMPN 1 Besitang, grade VIII. The sampling was done using the Simple Random Sampling technique. The sample used was class VIII/1 with 32 students as the experimental class and class VIII/2 with 32 students as the control class. The data collection technique used a test instrument given before (pre-test) and after (post-test) the implementation of the research. The data analysis technique used the Mann Whitney U test because the data were not normally distributed. The research results showed: (1) the average pre-test score of mathematical critical thinking skills before applying the PMRI approach based on ethnomathematics for the experimental class was 27.1 while for the control class it was 24.5. (2) The average post-test score of mathematical critical thinking ability after applying the PMRI approach based on ethnomathematics for the experimental class was 62.47, whereas for the control class it was 41.89, (3) the results of data processing using the Mann Whitney U test obtained an Asymp. Sig value of 0.000 < 0.05, so H0 is rejected and H1 is accepted, thus it can be concluded that there is an effect of the RME approach based on ethnomathematics on students' mathematical critical thinking ability. (4) The results of the homogeneity test of both classes show that they do not have different variances or the data is homogeneous.

Analisis Tingkat Pemahaman Siswa SMP Terhadap Penyajian Data Statistik Berdasarkan Hasil Angket”

Nur Aliza Septiutami — 2026-07-01

In today's digital era, statistical literacy has become a crucial competence for individuals to understand and interpret data-based information presented in tables, graphs, and diagrams. Although data representation is a fundamental part of the Junior High School (SMP) mathematics curriculum, reality in the field indicates that many students still face obstacles in critically interpreting data. Student understanding is often limited to reading data explicitly, lacking the ability to perform deeper evaluation or analysis. This study aims to analyze the level of Junior High School students' understanding of statistical data representation, identify the types of difficulties students face in interpreting data visualizations, and explore the various factors influencing their level of comprehension.

In order to give a comprehensive summary of the respondents' situations, this study utilized a descriptive methodology with a qualitative approach. During the 2025–2026 school year, researchers at SMP Fitra Abdi Palembang collected data. Students in the high, medium, and low understanding groups were included in the subject selection process through the use of a purposive sampling technique. To begin, we used a questionnaire to collect basic information on students' perspectives; to round up our data, we used semi-structured interviews to confirm students' reasoning behind their responses. Indicators of mathematical competence, such as the capacity to categorize objects, choose operational processes, and apply algorithms for solving problems, were considered in the data analysis procedures that comprised data reduction, data presentation, and drawing conclusions. This study aims to assess students' statistical literacy in a comprehensive way. By doing so, we can help junior high school teachers enhance their data analysis skills through the development of more contextual and effective learning methodologies.

Profil Pemahaman Konsep Penjumlahan dan Pengurangan pada Siswa Diskalkulia

Muhammad Rizal Usman — 2026-07-01

Penelitian ini bertujuan untuk mendeskripsikan profil pemahaman konsep penjumlahan dan pengurangan pada siswa diskalkulia di Sekolah Dasar, serta mengidentifikasi strategi berhitung dan kesulitan spesifik yang dialami. Penelitian menggunakan pendekatan kualitatif dengan jenis studi kasus. Subjek penelitian adalah satu orang siswa kelas II SD yang teridentifikasi memiliki karakteristik diskalkulia berdasarkan kriteria yang ditetapkan. Teknik pengumpulan data meliputi tes tertulis (12 soal penjumlahan dan pengurangan), wawancara semi-terstruktur, dan observasi perilaku. Analisis data menggunakan model Miles, Huberman, dan Saldaña yang mencakup kondensasi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa subjek mampu menjelaskan makna penjumlahan dan pengurangan hanya dengan bantuan benda konkret, dominan menggunakan strategi counting all dengan waktu detik per soal, serta mengalami kesulitan signifikan pada teknik menyimpan ( dijawab ) dan teknik meminjam ( dijawab bergantian ). Lima kesulitan spesifik yang diidentifikasi meliputi pemahaman nilai tempat yang lemah, ketergantungan pada jari, pemahaman instrumental (hafal prosedur tanpa memahami makna), kecemasan matematika tinggi, dan inkonsistensi strategi. Simpulan penelitian ini adalah bahwa profil pemahaman subjek mengonfirmasi teori diskalkulia sebagai gangguan neurokognitif spesifik yang memerlukan pendekatan pembelajaran terstruktur, konkret, dan suportif. Saran penelitian ditujukan kepada guru, orang tua, sekolah, dan peneliti selanjutnya untuk mengembangkan intervensi yang tepat sasaran berbasis pemahaman profil kognitif anak diskalkulia.

PENERAPAN MODEL PEMBELAJARAN PROJECT BASED LEARNING (PjBL) UNTUK MENINGKATKAN KREATIVITAS DAN HASIL BELAJAR MATEMATIKA SISWA

Muhammad Razali Ali — 2026-07-01

This research is a Classroom Action Research conducted with the aim of improving students' creativity and learning outcomes through the implementation of the Project Based Learning (PjBL) model in Mathematics lessons. The subjects of this research are eighth-grade students of SMP RGM Besitang, in the 2025/2026 academic year, totaling 30 students, consisting of 13 females and 17 males. The object of this study is the Application of the Project Based Learning (PjBL) Model to improve students' creativity in Mathematics lessons for eighth-grade students at SMP RGM Besitang. Therefore, this study was conducted by carrying out a cycle review process. This research was conducted in two cycles, each consisting of two meetings. The results of observations on the application of Project Based Learning for teachers and students in Cycles I-II show that the observation results for teachers in Cycle I were 85.63%, which increased to 95.01% in Cycle II. Observation results of students in cycle I were 84.87%, and in cycle II increased to 96.57%. Based on the data, it is known that the overall average has reached the research performance indicator of 85%. Student Creativity Observation results in cycle I, meeting I had an average score of 53.4%, and in the second meeting in cycle I had an average score of 65.0%. For cycle II, in meeting I, the average was 74.9%, and for the second meeting in cycle II, the average score was 88.7%. Student Learning Outcomes in cycle I had an average score of 69.3, and in cycle II, the average score was 88.9.

PENGEMBANGAN MODUL AJAR MATEMATIKA BERBASIS BUDAYA LOKAL BATAK ANGKOLA: STUDI KEPRAKTISAN PADA MATERI SPLDV

Muhammad Syahril Harahap — 2026-07-01

This study aimed to develop and analyze the practicality of a Local Culture-Based Mathematics Teaching Module rooted in Batak Angkola culture (MOAMABUL) on the topic of Systems of Linear Equations in Two Variables (SLETV) to support students’ creative thinking skills. The study employed a Research and Development (R&D) approach using the 4D development model, consisting of the define, design, develop, and disseminate stages. The participants were students of class X TAV-1 at SMK Negeri 2 Padangsidimpuan who were involved in the product trial. Data were collected through a student response questionnaire administered after the implementation of the developed module. The data were analyzed quantitatively using descriptive statistics by calculating the percentage scores of students’ responses to determine the practicality level of the product. The results revealed that MOAMABUL achieved an average practicality score of 66%, which falls into the “fairly practical” category. These findings indicate that the developed module is feasible for use in mathematics learning and is positively received by students. The integration of Batak Angkola local culture into the learning materials enables students to understand mathematical concepts in a more contextual and meaningful manner. Therefore, MOAMABUL contributes as an alternative teaching resource that incorporates local cultural values into mathematics education and has the potential to support the development of students’ creative thinking skills.

Dari Visualisasi Ke Validasi: Pengembangan Model Proses Pembuktian Tanpa Kata dan Strategi Pembuktian Visual Mahasiswa Tentang Teorema Pythagoras

Syaiful Hadi — 2026-07-01

Proof is a fundamental activity in mathematics; however, many students experience difficulties in constructing formal proofs due to the dominance of abstract symbolic representations. One promising approach to addressing this challenge is proof without words (PWW), which utilizes visual representations to support the construction of mathematical arguments. This study aimed to identify the stages of the proof-without-words process, describe the visual strategies employed by students, and develop a process model of proof without words. A qualitative approach with an exploratory case study design was employed involving 30 undergraduate mathematics education students. Data were collected through a Pythagorean Theorem proof task, task-based interviews, and students’ written work. The data were analyzed thematically by integrating Boero’s proving process framework and Heinze and Reiss’s proof competency model. The findings revealed that the proof-without-words process consists of five main stages: visual inspection, hypothesis recognition, operation justification, proof construction, and validation. Furthermore, three dominant strategies were identified: visual-to-algebraic translation, geometric manipulation, and geometric reconstruction. The study resulted in the development of a Proof Without Words Process Model that explains how visual representations are used to construct and validate mathematical arguments. These findings contribute to a deeper understanding of the cognitive processes underlying visual proof construction in mathematics.

PENERAPAN GAMIFICATION METHOD UNTUK MENINGKATKAN KEMAMPUAN NUMERASI SISWA KELAS III SD

Nurul Meilina Azizah — 2026-07-01

Penelitian ini berasal dari permasalahan kemampuan numerasi siswa sekolah dasar masih tergolong rendah sehingga diperlukan inovasi pembelajaran yang dapat meningkatkan keterlibatan dan pemahaman siswa. Penelitian ini bertujuan untuk melihat peningkatan kemampuan numerasi siswa setelah diterapkan gamification method pada materi penyajian data di kelas III SD. Penelitian ini menggunakan pendekatan kuantitatif dengan metode eksperimen semu, menggunakan desain non-equivalent control group design. Populasi penelitian adalah seluruh siswa kelas III SD Negeri di Kecamatan Cikatomas, Kabupaten Tasikmalaya. Sampel penelitian yaitu SDN Margamulya dan SDN Sukasirna. Teknik pengumpulan data dilakukan melalui tes. Berdasarkan uji independent sample t-test terdapat perbedaan pengaruh yang signifikan antara penerapan gamification method dan metode konvensional terhadap kemampuan numerasi siswa. Berdasarkan hasil perhitungan N-Gain, peningkatan kemampuan numerasi siswa pada kelas eksperimen termasuk pada kategori sedang (47%) sementara pada kelas kontrol termasuk ke dalam kategori rendah (22,5%). Dengan demikian, peningkatan kemampuan numerasi pada kelas yang menerapkan gamification method lebih tinggi dibandingkan kelas yang menggunakan metode konvensional. Sehingga gamification method dapat dijadikan alternatif pembelajaran yang efektif untuk meningkatkan kemampuan numerasi siswa.

PEMAHAMAN KONSEP OPERASI HITUNG PENJUMLAHAN BILANGAN CACAH SISWA SEKOLAH DASAR

Rizka Amelia — 2026-07-01

This study aims to analyze the extent to which elementary school students understand the concept of addition operations based on a review of relevant literature. The method used in this study is library research through the review of various relevant sources and the results of previous studies related to the understanding of the concept of addition in elementary school students. Research data were obtained from various sources of literature studies that meet the criteria of validity, reliability, and relevance of the study. The analysis was carried out using descriptive analysis techniques to describe the level of students' understanding of the concept of addition operations of integers in elementary school students. The results of the study indicate that the understanding of grade 1 students on the concept of addition of integers is still not optimal. Students' difficulties in understanding place value are an important finding that can be used as evaluation material in mathematics learning in elementary schools.

LKPD ETNOMATEMATIKA MAKANAN KHAS KEDIRI PADA MATERI VOLUME BANGUN RUANG KELAS V SD

Putri Wahyu Ramadani — 2026-07-01

Penelitian ini bertujuan untuk mengembangkan Lembar Kerja Peserta Didik (LKPD) berbasis etnomatematika makanan khas Kediri pada materi volume bangun ruang kelas V sekolah dasar serta mengetahui tingkat kevalidan, kepraktisan, dan keefektifannya. Penelitian menggunakan metode Research and Development (R&D) dengan model ADDIE yang meliputi tahap Analysis, Design, Development, Implementation, dan Evaluation. Subjek penelitian terdiri atas 17 peserta didik kelas V-B sebagai uji coba skala kecil dan 25 peserta didik kelas V-A sebagai uji coba skala besar di SDN Semen 1 Kabupaten Kediri. Teknik pengumpulan data meliputi observasi, wawancara, dokumentasi, angket, dan tes. Hasil penelitian menunjukkan bahwa LKPD yang dikembangkan memperoleh kategori sangat valid berdasarkan penilaian dua validator ahli. Hasil uji kepraktisan menunjukkan respons guru mencapai 100%, sedangkan respons peserta didik mencapai 95,88% pada skala kecil dan 93,20% pada skala besar dengan kategori sangat praktis. Hasil uji keefektifan menunjukkan nilai signifikansi sebesar 0,000 pada uji Wilcoxon Signed Ranks Test maupun Paired Samples t-Test, sehingga terdapat peningkatan hasil belajar peserta didik yang signifikan setelah menggunakan LKPD. Dengan demikian, LKPD berbasis etnomatematika makanan khas Kediri dinyatakan valid, praktis, dan efektif digunakan dalam pembelajaran matematika materi volume bangun ruang kelas V sekolah dasar.

PENGEMBANGAN DAN UJI EFEKTIVITAS SMART BOX ETNOMATEMATIKA CANDI TEGOWANGI PADA MATERI BANGUN RUANG

Miftakhul Thomas Bachtiar — 2026-07-01

This study was motivated by students’ low understanding of three-dimensional geometry due to the abstract nature of the material and the limited use of learning media that provide concrete learning experiences. The purpose of this study was to develop and examine the effectiveness of a Smart Box learning media based on the ethnomathematics of Tegowangi Temple for fifth-grade elementary school students. This research employed the Research and Development (R&D) method using the ADDIE model, which consists of the stages of analysis, design, development, implementation, and evaluation. The research subjects consisted of 12 students in the limited trial and 27 students in the field trial at SDN Sukorame 2, Kediri City. The research instruments included material and media validation sheets, teacher and student response questionnaires, and pretest-posttest questions. The results showed that the developed media achieved a very high level of validity, with material expert validation reaching 100% and media expert validation reaching 90.5%. The practicality of the media was also categorized as very practical, with teacher responses of 97.6%, limited trial responses of 95.8%, and field trial responses of 97.4%. The effectiveness of the media was demonstrated by an N-Gain score of 0.86 in the high category and a Wilcoxon test result of 0.000 < 0.05. Therefore, the Tegowangi Temple Ethnomathematics-Based Smart Box was proven to be valid, practical, and effective as a learning medium for teaching three-dimensional geometry in elementary schools.

PENGARUH MODEL PROBLEM BASED LEARNING BERBANTUAN WORDWALL TERHADAP HASIL BELAJAR MATEMATIKA

Kostantina Ohoiwutun — 2026-07-01

This study aims to determine the effect of the Wordwall-assisted Problem-Based Learning model on the mathematics learning outcomes of third-grade students at UPT SPF SD Inpres Bangkala III in Makassar. This study employed a quantitative approach using a pre-experimental One-Group Pretest–Posttest Design. The study population consisted of all third-grade students at UPT SPF SD Inpres Bangkala III in Makassar, while the sample comprised students in Class 3A. Data collection techniques included observation, achievement tests, and documentation. Data analysis utilized descriptive and inferential statistics. The results indicated that the implementation of the Wordwall-assisted Problem-Based Learning model had a positive effect on students’ mathematics achievement. Furthermore, student engagement during the learning process was rated as “good,” indicating that students were actively involved in every stage of the learning process, thereby supporting improvements in mathematics achievement. Thus, it can be concluded that there is a significant effect of implementing the Wordwall-assisted Problem-Based Learning model on the mathematics learning outcomes of third-grade student kelas III UPT SPF SD Inpres Bangkala III Kota Makassar. Furthermore, the observation results showed that the teacher’s activities during the learning process were in the “very good” category, reflecting that each stage of the learning process was carried out optimally in accordance with the syntax of the Wordwall-assisted Problem-Based Learning model.

Pengembangan Media Pembelajaran Matematika Berbasis Permainan Edukatif Ular Tangga Bermuatan Budaya Tapanuli Selatan Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematika Siswa Kelas VIII Mts Negeri 3 Padangsidimpuan

Roslian Lubis — 2026-07-01

This development research aims to: 1) Determine the validity of the educational game "Snakes and Ladders" mathematics learning media, 2) Determine the practicality of the educational game "Snakes and Ladders" mathematics learning media, 3) Determine the effectiveness of the educational game "Snakes and Ladders" mathematics learning media. This research is a Research and Development (R&D) study using the ADDIE development model, which consists of five stages: 1) Analysis, 2) Design, 3) Development, 4) Implementation, and 5) Evaluation. Data collection techniques in this study were questionnaires, tests, and documentation. The instruments used were 1) a questionnaire in the form of a validation questionnaire by experts to determine the product's validity and a student response questionnaire to determine its practicality, 2) a test sheet for the effectiveness of the developed product. Validation was carried out by media experts and material experts, who then conducted a product trial by observing the response to product use and student test results based on mathematical problem-solving abilities. The trial was conducted on 20 students in grade VIII of MTs Negeri 3 Padangsidimpuan. Based on the results of this study, the product's validity was obtained with an average percentage of 91.6%, categorized as "Very Valid," the product's practicality was obtained with an average percentage of 86.5%, categorized as "Practical," and the product's effectiveness was obtained with an average percentage of 89%, categorized as "Effective."