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All Journal M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Mandalika Mathematics and Educations Journal Jurnal Math-UMB.EDU
Minadja, Adji W. S.
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Education Mathematics

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The Effectiveness of Using Electronic Student Worksheet With A Contextual Approach On Student Adversity Quotient Minadja, Adji W. S.; Sutiarso, Sugeng; Firdaus, Rangga
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 9 No. 3 (2024): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v9i3.655

Abstract

This study aims to inspect the effectiveness of using electronic student worksheets with a contextual approach on students' Adversity Quotient (AQ). The research design employed was quasi-experimental. It was conducted at Kotabumi during the academic year 2023/2024, involving 86 VII-th grade students as the population, focusing on the subject matter of social arithmetic. The independent variable in this study is electronic student worksheets with a contextual approach, and the dependent variable refers to the adversity quotient. The research sample was selected using random sampling technique, with 28 students from class VII B assigned to the experimental group and the control group consisted of 28 students from class VII C. The research employed a pre-post control group design. The instrument used was a questionnaire on adversity quotient, which had undergone validity and reliability tests. Data analysis involved descriptive and inferential analyses, with hypothesis testing conducted using independent sample t-tests. Based on the results of the n-gain hypothesis test, there was a difference in the improvement of students' AQ between the experimental and control groups. The findings of this study, as demonstrated through the n-gain test, indicate that the use of electronic student worksheets with a contextual approach is effective in enhancing students AQ.
Perancangan dan Pengembangan Lembar Kerja Interaktif Materi Aritmetika Sosial untuk Meningkatkan Kemampuan Pemecahan Masalah Siswa Minadja, Adji W. S.; Sugeng Sutiarso; Rangga Firdaus; Kenny Candra Pradana; Karsoni Berta Dinata
Mandalika Mathematics and Educations Journal Vol 7 No 4 (2025): Desember
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i4.10627

Abstract

Design interactive worksheets based on Canva and Liveworksheets is the aim of this project to assist students in developing their social arithmetic problem-solving abilities. The research methodology employed was research and development (R&D) using the ADDIE model, which comprises the phases of analysis, design, development, implementation, and evaluation. The participants were seventh-grade students and a math teacher from SMP Negeri 5 Kotabumi, Lampung. Tests of problem solving skills, observations, interviews, and questionnaires were employed to gather both qualitative and quantitative data. Subject matter experts' validation assessment, which received a score of 0.84 (very valid), media experts' score of 0.90 (valid), and students' and instructors' practicality index scores of 0.80 (practical) and 0.90 (very practical) all demonstrate the study's findings. The effectiveness of the interactive worksheet developed can be seen based on the testing of the n-gain data hypothesis listed in the significance section (2-tailed), which is 0.0017. There is a difference in the improvement of problem solving skills for students who use interactive worksheets. The novelty of this research lies in the development of interactive worksheets based on the Canva and Liveworksheet digital platforms, which integrate visualization, direct interaction, and automatic feedback to improve students' problem solving skills in social arithmetic. Thus, these findings show that the worksheets are valid, practical, and effective in improving students' problem solving skills.
ETHNOMATHEMATICS POP-UP BOOK ON GEOMETRY IN TRADITIONAL LAMPUNG HOUSES: Lampung, Indonesia Pradana, Kenny Candra; Rohani, Anisa; Minadja, Adji W. S.
Jurnal Math-UMB.EDU Vol. 13 No. 2 (2026): MARCH
Publisher : Universitas Muhammadiyah Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36085/math-umb.edu.v13i2.9523

Abstract

This study aims to develop an ethnomathematics-based pop-up book as a learning medium, integrating geometric concepts within the context of traditional Lampung houses, to enhance students' conceptual understanding of mathematics and to evaluate the responses of teachers and students as well as the effectiveness of the media. The research employed the Borg & Gall development model with seven steps: data collection, planning, initial draft development, preliminary testing, product revision, main field testing, and dissemination and implementation. Data were analyzed using qualitative and quantitative descriptive methods. Validation results indicated that the media fell into the "highly feasible" category, with a score of 90% from material and media experts. Small-scale testing received a "very interesting" response of 92%, while large-scale testing achieved a 94% positive response from 29 students. Improvement in conceptual understanding was evidenced by an N-Gain score of 0.89 (high category), and the media’s effectiveness was shown by an effect size of 1.06 (effective category). The findings imply that the ethnomathematics-based pop-up book is effective in supporting culturally responsive mathematics learning and can serve as an innovative and contextual alternative learning medium. Keywords: Ethnomathematics; Geometry; Pop-Up Book; Research and Development; Traditional Lampung Houses
Co-Authors Karsoni Berta Dinata Kenny Candra Pradana Rangga Firdaus Rangga Firdaus Rohani, Anisa Sugeng Sutiarso Sugeng Sutiarso