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All Journal Journal of Innovation in Educational and Cultural Research Unram Journal of Community Service (UJCS)
Carolina Selfisina Ayal
Pattimura University
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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Analysis of Students' Problem-Solving Ability through Coastal Culture–Based Realistic Mathematics Learning Carolina Selfisina Ayal; Anderson Leonardo Palinussa
Journal of Innovation in Educational and Cultural Research Vol 7, No 3 (2026): Article in Press
Publisher : Yayasan Keluarga Guru Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46843/jiecr.v7i3.2983

Abstract

This study investigates students' mathematical problem-solving ability through Coastal Culture–Based Realistic Mathematics Education (RME). Problem-solving is a critical 21st-century competency and a central goal of mathematics education; however, conventional instruction often fails to connect mathematical concepts with students' real-life contexts. The objective of this study is to analyze the effect of RME on students' mathematical problem-solving abilities after they receive realistic learning based on coastal potential. A quasi-experimental design with a pretest–posttest control group was employed, involving 120 eighth-grade students from three junior high schools in West Seram Regency. The experimental group received coastal potential–based RME instruction, while the control group experienced conventional learning. Data were analyzed using descriptive statistics, normality and homogeneity tests, independent t-tests, and ANOVA. The results revealed a significant difference in improvement between the experimental and control groups (p 0.05), with the experimental group achieving a moderate and effective N-gain (67.8%), compared to the ineffective gain in the control group (20.8%). The findings conclude that coastal culture–based RME is more effective in enhancing students' problem-solving abilities than conventional methods. This study contributes to mathematics education by integrating local cultural context into RME, providing an innovative framework for contextualized learning in secondary education.
Improving Numeracy Skills for Teachers in South Buru Regency Anderson Leonardo Palinussa; Carolina Selfisina Ayal; Eka Triana
Unram Journal of Community Service Vol. 7 No. 1 (2026): March
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v7i1.1645

Abstract

This community service activity aims to improve the numeracy skills of teachers in South Buru Regency through Community-Based Research (CBR) training. This approach places teachers as partners who are actively involved in the entire activity process, from the planning stage, implementation, to program evaluation. The activity was attended by 80 teachers from elementary and junior high school levels. The training materials include understanding basic numeracy concepts, the difference between numeracy and calculation skills, strategies for integrating numeracy into learning, as well as the application of numeracy in various everyday life situations. The effectiveness of the activities was measured using pre-test and post-test instruments that covered six aspects of teachers' numeracy skills assessment. The training results showed a significant improvement in all measured aspects. The average pre-test scores ranged from 50–58, while the post-test results increased to 78–85. In addition to the improvement in evaluation results, observation results also showed an increase in participation, enthusiasm, confidence, and teachers' ability to discuss and simulate numeracy learning. Thus, this activity is effective in enhancing teachers' conceptual understanding and strengthening their ability to apply numeracy learning that is more contextual, innovative, and in accordance with the needs of students in the school environment.
Co-Authors Anderson Leonardo Palinussa Eka Triana