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Efektivitas penggunaan model problem based learning(PBL) Terhadap Kemampuan Pemecahan Masalah Matematis Di SMP N 9Padangsidimpuan Marwa Harahap; Nunik Ardiana; Muhammad Syahril Harahap
JURNAL MathEdu (Mathematic Education Journal) Vol 6 No 2 (2023): JURNAL MathEdu (Mathematic Education Journal) Juli 2023
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v6i2.5056

Abstract

Penelitian ini bertujuan untuk mengetahui keefektifan penggunaan PBL model terhadap kemampuan pemecahan masalah matematis pada siswa kelas VII SMP Negeri 9 Padangsidimpuan. Metode penelitian yang digunakan adalah eksperimen dengan desain One-Group Pretest-Postest dengan sample sebanyak 25 siswa (kelas VII) yang diambil dari 167 siswa dengan menggunakan teknik cluster sampling. Berdasarkan hasil perhitungan diperoleh nilai rata-rata siswa sebelum menggunakan model PBL adalah 6,68 (kategori kurang) dan setelah diterapkan model PBL diperoleh nilai rata-rata 8.35 (kategori baik). Selanjutnya, berdasarkan uji t-test (SPSS 20) menunjukkan nilai signifikan lebih kecil dari 0.05 (0,000<0,005). Artinya terdapat keefektivitan penggunaan PBL terhadap kemampuan pemecahan masalah matematis pada siswa kelas VII SMP Negeri 9 Padangsidimpuan dengan nilai g= 0.45 (efektif dengan kategori sedang).
Pengembangan Media Pembelajaran E-Book Berbasis Etnomatematika Untuk Meningkatkan Kemampuan Penalaran Matematis Di SMP Kota Padangsidimpuan Atikah Ilmiyanti; Muhammad Syahril Harahap; Nunik Ardiana
JURNAL MathEdu (Mathematic Education Journal) Vol 9 No 2 (2026): JURNAL MathEdu (Mathematic Education Journal) Juli 2026
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v9i2.7260

Abstract

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; Rahmatika Elindra; Nunik Ardiana
JURNAL MathEdu (Mathematic Education Journal) Vol 9 No 2 (2026): JURNAL MathEdu (Mathematic Education Journal) Juli 2026
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v9i2.7263

Abstract

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 MEDIA PEMBELAJARAN MATEMATIKA BERBASIS PERMAINAN EDUKATIF ULAR TANGGA UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMA DI ANGKOLA BARAT Tara Mashuri Simbolon; Nunik Ardiana; Muhammad Syahril Harahap
JURNAL MathEdu (Mathematic Education Journal) Vol 9 No 1 (2026): JURNAL MathEdu (Mathematic Education Journal) Maret 2026
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v9i1.7267

Abstract

The research conducted aims to determine the effectiveness of educational game-based mathematics learning media snakes and ladders to improve mathematical problem-solving skills of class X-2 students of SMA Negeri 1 Angkola Barat. The research method used in this study is using classical completeness. The subjects in this study came from 3 validators, as well as class X-2 students. The data collection technique used was using a questionnaire validation question and test for effectiveness testing. The results of the test question instrument validation analysis obtained a total percentage of achievement of 90% with the category "Very Valid". The results of the effectiveness data analysis obtained an overall average value of 75.45 with the category "Complete" and a percentage of completeness of 64.70% with the category "Effective". Based on the results obtained, it can be concluded that the resulting learning media is valid, practical, and effective.
EFEKTIVITAS MODEL PEMBELAJARAN KONTEKSTUAL TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA DI SMK NEGERI 1 ANGKOLA TIMUR Desmiati Harahap; Muhammad Syahril Harahap; Nunik Ardiana
JURNAL MathEdu (Mathematic Education Journal) Vol 9 No 1 (2026): JURNAL MathEdu (Mathematic Education Journal) Maret 2026
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v9i1.7328

Abstract

Students pay less attention to the teacher during the learning process because students find it difficult to understand the learning material, especially in mathematics. The purpose of this study was to determine the effectiveness of the contextual learning model on students' mathematical problem-solving abilities on the material of two-variable linear equation systems in Class X of SMK Negeri 1 Angkola Timur. The type of research used by the researcher is quantitative research. In this study, the researcher used the True-Experienced Design design with the One Group Pretest and Posttest Design type. The population was all students of Class X at SMK Negeri 1 Angkola Timur consisting of 6 classes totaling 92 students. Based on the data analysis, the researcher drew conclusions based on the results of data collection, there was an effectiveness of the contextual learning model on the material of two-variable linear equation systems on students' mathematical problem-solving abilities. This is evidenced by the results of the paired sample test that has been conducted in the experimental class. It can be concluded that H0 in the experimental class is rejected and Ha is accepted because the sig value (2-tailed) in the experimental class is 0.00 less than 0.05. Furthermore, based on inferential statistics using the pair sample t-test, (SPSS version 27), the results show a significance value of less than 0.05 (0.000 < 0.05). This means that the constructivism learning model is effectively used for the mathematical problem solving abilities of class X students of SMK Negeri 1 Angkola Timur.
Co-Authors Agus Saleh Atikah Ilmiyanti Christin Elisabet Sihombing Desmiati Harahap Devi Lestari Diah Maya Fitrih Dina Lorenza Situmeang Elis Sanriani Ester Simare-Mare Gurgur Rodop Mauli Harahap, Sinar Depi Henni Paujiah Tanjung Intan Purnama Sari Siregar Januardi Rosyidi Lubis, Kurniawan Giawa Marwa Harahap Marzuki Ahmad Muhammad Syahril Harahap Nelli Rambe Nina Anriani Pulungan Nur Jakiah Nurhazana R. Simanungkalit Rahmad Fauzi Rahmatika Elindra Rapika Hafsyah Nasution Riki Martin Togatorop Roslian Lubis Rosmaida Siregar RR. Ella Evrita Hestiandari Siti Syahroni Harahap Sukrina Ayu Khalilah Tara Mashuri Simbolon yulia pratiwi siregar Zuraidah Sani Pohan