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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar JPLED
Azizah Yusra Amaliyah
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Education Languange, Linguistic, Communication & Media Mathematics Other

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Developing a Connected Mathematics Project-Based Mathematics Textbook to Improve Elementary School Students' Conceptual Understanding and Self-Confidence Azizah Yusra Amaliyah; Syahrina Anisa Pulungan; Filzah Syaurah Dhabitah
Journal of Practice Learning and Educational Development Vol. 5 No. 4 (2025): Journal of Practice Learning and Educational Development (JPLED)
Publisher : Global Action and Education for Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58737/jpled.v5i4.879

Abstract

This study aims to develop a mathematics textbook based on the Connected Mathematics Project (CMP) to improve elementary school students' conceptual understanding and self-confidence. The research method used is Research and Development (R&D) with the Plomp development model which includes five stages, namely preliminary investigation, design, realization, trial, and implementation. The research subjects were fifth-grade students of PAB 27 Medan Private Elementary School with instruments in the form of validation sheets, conceptual understanding tests, and self-confidence questionnaires. The results of expert validation showed that the textbook obtained an average score of 77.2% with a very feasible category. The effectiveness test showed an increase in conceptual understanding from 54.3% to 74.6% and self-confidence from 52.1% to 72.8%. This increase places the product in the effective category although it has not yet reached a very effective level. The practicality test conducted through teacher and student responses resulted in an average of 77.5% with a very practical category. Overall, this study concludes that the developed CMP-based textbook is not only substantively feasible but also quite effective in improving students' conceptual understanding and self-confidence, and is practical for use in learning. This product can be used as an alternative, innovative learning resource for elementary school mathematics, with recommendations for further development to enhance interactivity and visualization
DIAGNOSIS KESULITAN BELAJAR BANGUN RUANG SISI LENGKUNG DI KELAS XI SMKN 1 PERCUT SEI TUAN Dhita Thivani Linch Hutabarat; Ainul Marhamah Hasibuan; Azizah Yusra Amaliyah
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 04 (2025): Volume 10 No. 04 Desember 2025 In Order
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i04.23554

Abstract

This study aims to determine what causes students' learning difficulties in studying mathematics on curved side space geometry in class XI of SMKN 1 Percut Sei Tuan. This type of research is a descriptive type of research with a qualitative approach. The population in this study were all students of SMKN 1 Percut Sei Tuan. The sample in this study was 32 students of class XI of SMKN 1 Percut Sei Tuan. Data collection used questionnaires, interviews, and tests on curved side space geometry. Based on the results of the questionnaire instrument, there were 4 forms of learning difficulties including; students who felt they had difficulty because they did not understand with a percentage of 39.06%, students who felt they were not careful in doing the test with a percentage of 42.96, students who felt the test was difficult with a percentage of 13.28%, and students who did not know anything about curved side space geometry with a percentage of 4.68%. Then based on the results of the test instrument, there were criteria that caused students' learning difficulties including; students who experienced conceptual errors with a percentage of 12.5%, students who experienced errors in using arithmetic operations with a percentage of 9.68%, students who completed the test with an imperfect algorithm with a percentage of 8.43%, and students who completed the test carelessly with a percentage of 8.43%.
Co-Authors Dhita Thivani Linch Hutabarat Filzah Syaurah Dhabitah Hasibuan, Ainul Marhamah Syahrina Anisa Pulungan