PENGEMBANGAN BAHAN AJAR ETNOMATEMATIKA DENGAN PENDEKATAN KONTEKSTUAL UNTUK MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA SMP NEGERI 2 PADANGSISIMPUAN

Muhammad Syahril Harahap; Rahmatika Elindra; Zakiya Maimunah Nasution; Nurhidaya Fithriyah Nasution; Febriani Hastini Nasution

doi:10.37081/mathedu.v7i3.5851

Muhammad Syahril Harahap Institut Pendidikan Tapanuli Selatan
Rahmatika Elindra Institut Pendidikan Tapanuli Selatan
Zakiya Maimunah Nasution Institut Pendidikan Tapanuli Selatan
Nurhidaya Fithriyah Nasution Institut Pendidikan Tapanuli Selatan
Febriani Hastini Nasution Institut Pendidikan Tapanuli Selatan

DOI: https://doi.org/10.37081/mathedu.v7i3.5851

Keywords: Bahan Ajar, Etnomatematika, Pengambangan, Komunikasi Matematis

Abstract

Abstract

This research aims to produce ethnomathematics teaching materials with a contextual approach to improve the mathematical communication skills of students at SMP Negeri 2 Padangsidimpuan and determine the quality of teaching materials in terms of validity, practicality and effectiveness. This research is Research and Development (R&D) research with the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) development model. The subjects in this research were 29 students in class VIII-3 of SMP Negeri 2 Padangsidimpuan. Data collection techniques in this research are questionnaires, tests and documentation. The instruments used include 1) a questionnaire sheet in the form of a validation questionnaire by experts to see the validity of the product and a student response questionnaire to see the practicality of the product and 2) a test sheet for the effectiveness of the product being developed. Validation was carried out by media experts, material experts, language experts and cultural experts who then carried out product trials by looking at responses to product use and student test results based on mathematical communication skills. Based on the results of this research, product validity was obtained with an average percentage of 84.075% in the "Very Valid" category, product practicality with an average percentage of 89.38% in the "Very Practical" category and product effectiveness with an average percentage of 77.1% ith the "Effective" category.

Keywords: Ethnomathematics Teaching Materials, Contextual Approach, Mathematical Communication Skills

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