EMPOWERING MATHEMATICAL PROFICIENCY BY DEVELOPING ENRICHMENT BOOK IN THE TOPIC OF RATIONAL NUMBERS

Authors

DOI:

https://doi.org/10.24127/ajpm.v13i2.8448

Keywords:

Enrichment book, mathematical proficiency, rational numbers

Abstract

In Indonesia, there exists a significant gap in mathematical proficiency levels among students, evidenced by declining achievement rates over time and exacerbated by the COVID-19 pandemic, as revealed by recent studies and assessments such as PISA 2022. This research aims to develop an enrichment book in the topic of rational numbers that can enhance the mathematical proficiency level of junior high school students. This research uses the R&D approach which adopts the ADDIE model. The research instruments used in this study include validation sheets for subject matter expert, validation sheets for graphic expert, response questionnaire for teacher, pretest sheets, and posttest sheets. After the initial draft of the enrichment book was produced, the research continued with validating the book by a subject matter expert, a graphic expert, and a mathematics teacher . In the implementation phase, the validated and revised book was then tested on 29 seventh-grade students at Al Falah Junior High School, located in Dago region, Bandung city. Descriptively, the average score of students' pretest was 32.6%, while the average score of their posttest was 75.2%. The enrichment book has been shown to improve students’ scores significantly according to the N-gain, meaning that it significantly enhances students' mathematical proficiency level. Based on the established categories, these results indicate that the developed enrichment book can enhance students' mathematical proficiency level.

 

Di Indonesia, terdapat kesenjangan signifikan dalam tingkat kecakapan matematis siswa, yang diperparah oleh pandemi COVID-19, seperti yang dibuktikan oleh penurunan tingkat prestasi dari waktu ke waktu dan penilaian terbaru seperti PISA 2022. Penelitian ini bertujuan untuk mengembangkan buku pengayaan pada materi bilangan rasional yang dapat meningkatkan level kecakapan matematis untuk siswa SMP/MTs. Penelitian ini menggunakan pendekatan penelitian dan pengembangan dengan model ADDIE (analysis, design, development, implementation, and evaluation). Instrumen yang digunakan dalam penelitian ini meliputi lembar validasi ahli materi, lembar validasi ahli kegrafikaan, angket respons untuk guru, lembar tes awal, dan lembar tes akhir. Setelah dihasilkan draf awal buku pengayaan, kegiatan penelitian dilanjutkan dengan memvalidasi buku pengayaan oleh ahli materi dan kegrafikaan. Pada tahap implementasi, buku yang telah divalidasi dan direvisi kemudian diujicobakan kepada 29 orang siswa kelas VII di SMP Al Falah yang terletak di wilayah Dago, Kota Bandung. Secara deskriptif, rata-rata nilai tes awal siswa adalah 32,6%, sedangkan rata-rata nilai tes akhir siswa adalah 75,2%. Perhitungan N-gain memberikan kesimpulan bahwa buku pengayaan dinyatakan efektif dalam meningkatkan kecakapan matematis siswa secara signifikan. Berdasarkan kategori yang ditetapkan, hasil ini menunjukkan bahwa buku pengayaan yang dikembangkan ini dapat meningkatkan level kecakapan matematis siswa.

Author Biographies

Etika Ramadani, Institut Teknologi Bandung

Department of Mathematics for Teaching

Sukardi Sukardi, Institut Teknologi Bandung

Department of Mathematics for Teaching

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Published

12-06-2024

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Vol. 13 No. 2 (2024)

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