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Mustamin Idris
Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Tadulako, Palu, 94119, Indonesia
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The Effectiveness of Using Quizizz as an Interactive Medium in Van Hiele Model Geometry Learning to Improve Creative Thinking Skills of Students at MTs Negeri 1 Donggala Rifka Amanda; Mustamin Idris; Bakri M Bakri M; Fajriani Fajriani
Journal of Educational Sciences Vol. 10 No. 1 (2026): Journal of Educational Sciences
Publisher : FKIP - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.10.1.p.675-687

Abstract

This study aims to determine the effectiveness of using Quizizz as an interactive learning medium in Van Hiele model geometry learning on the creative thinking skills of students at MTs Negeri 1 Donggala. This study used a quantitative approach with a quasi-experimental type and a nonequivalent control group pretest-posttest design. The research population was all eighth-grade students at MTs Negeri 1 Donggala, with a sample of 47 students consisting of two classes, selected through random sampling. The instrument used to measure creative thinking skills was a test consisting of two essay questions. The data were analyzed using prerequisite tests (normality and homogeneity tests) and hypothesis testing using an independent-sample t-test with the help of the SPSS program. The results showed that the significance value of the posttest t-test was 0.002 < 0.05, so H0 was rejected and H1 was accepted. The average posttest score of the experimental class was higher than that of the control class. Thus, it can be concluded that the use of Quizizz as an interactive learning medium in Van Hiele model geometry learning is effective in improving the creative thinking skills of students at MTs Negeri 1 Donggala.
Analysis of Mathematical Connection and Communication Skills in Flat-Sided Solid Geometry Material Based on the Mathematical Skills of Grade VIII Students at SMP Negeri 12 Palu Nadia Maulidina; Mustamin Idris; Muh. Hasbi; Nurhayadi Nurhayadi
Journal of Educational Sciences Vol. 10 No. 2 (2026): Journal of Educational Sciences
Publisher : FKIP - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.10.2.p.2594-2610

Abstract

Mathematics is an important subject that emphasizes mastery of concepts, communication, and mathematical connections. Mathematical connection skills enable students to relate concepts to one another, to other fields of science, and to everyday life, while mathematical communication skills facilitate the delivery of mathematical ideas verbally, in writing, and visually. This study aims to analyze students' mathematical connection and communication skills in solving flat-sided solid problems based on their mathematical ability levels. The research used a descriptive qualitative approach with three students from SMP Negeri 12 Palu as subjects, each representing high, medium, and low ability levels. Data were collected through written tests and semi- structured interviews, then analyzed using the Miles and Huberman model through the stages of condensation, presentation, and conclusion drawing and data verification. The results showed that high-ability students were able to understand, connect, and communicate flat-sided shape concepts completely and systematically. Medium-ability students demonstrated sufficient understanding, although there were deficiencies in the consistent use of symbols and drawing conclusions. Low-ability students experienced difficulties in connecting concepts, solving problems, and conveying ideas accurately.
Co-Authors Bakri M Bakri M Fajriani Fajriani Muh. Hasbi Nadia Maulidina Nurhayadi Nurhayadi Rifka Amanda