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All Journal Inovasi Matematika (Inomatika)
Harisman Nizar
Mathematics Education, Universitas Islam Negeri Raden Fatah Palembang, Indonesia
Mathematics

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Learning Circle Using Gobak Sodor Game Context In Eighth Grade Harisman Nizar; Dyah Rahmawati
Jurnal Inovasi Matematika Vol. 6 No. 1 (2024): Inovasi Matematika
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35438/inomatika.v6i1.418

Abstract

This research aims to produce a learning trajectory that can help students understand the concept of circles using the Indonesian Realistic Mathematics Education (PMRI) approach. This research takes the context of the traditional game "gobak sodor" which developed from an informal form to a formal form. The research method used is a research design that involves three stages, namely preparing for the experiment, experimental design, and retrospective analysis. This research was carried out in eighth grade class in one of Junior High School in Palembang involving 34 students. PMRI is the basis for the learning context and activities in this research. Data collection includes taking student work results, interviews, and observations. The results of the research produced a learning trajectory that supports understanding the concept of circles from informal to formal form, which involves one activity of playing "gobak sodor," collecting data through observation and measurement, as well as interpreting data and observations. The results of the learning activities show that the series of activities carried out can help students understand the concept of circles.
Development of E-Module Based on Guided Discovery on Polyhedron Material for Eighth Grade Harisman Nizar; Anita Umami; Yuli Fitrianti
Jurnal Inovasi Matematika Vol. 8 No. 1 (2026): Inovasi Matematika
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35438/inomatika.v8i1.557

Abstract

E-Modules are a form of independent learning media designed to cover a specific topic or material. This study aims to develop Canva-based mathematics learning media on the material of flat-sided solid shapes with a guided discovery approach that has a level of validity, practicality, and potential effects on improving students' conceptual understanding. The type of research applied is design research with a development study type, using the Tessmer procedure which includes two main stages, namely the preliminary stage and the prototyping stage through a formative evaluation process, which consists of self-evaluation, one-to-one, expert reviews, small group, and field test. The material in the e-module is arranged based on guided discovery indicators, while the evaluation tool is developed referring to the conceptual understanding indicators. Data collection techniques include interviews, tests, validation sheets, and questionnaires. The research subjects are grade VIII junior high school students. The results of the study indicate that the developed learning media has met the valid criteria based on the results of expert validation, practicality according to the results of student response questionnaires, and has a potential effect in improving students' mathematical conceptual understanding abilities.
Co-Authors Anita Umami Dyah Rahmawati Yuli Fitrianti