AbstrakPenelitian ini di bertujuan untuk mengembangkan, mengetahui respon serta keefektifan modul matematika berbasis problem solving pada materi vektor. Jenis penelitian ini adalah penelitian dan pengembangan atau yang lebih dikenal dengan Research and Develompment (R&D). Model pendekatan yang digunakan dalam penelitian ini yaitu ADDIE. Teknik analisis data pada penelitian ini digunakan untuk menghitung kevalidan dari para validator, respon pendidik dan peserta didik, dan keefektifan bahan ajar matematika. Hasil uji validasi yang dilakukan oleh validator adalah 3,24 kriteria cukup valid. Hasil respon pendidik 3,21 dengan kriteria menarik, respon uji coba skala kecil 3,4 dengan respon sangat menarik dan uji coba lapangan 3,8 dengan respon sangat menarik. Hasil uji efektifitas yang dilakukan saat uji lapangan mendapat persentase sebesar 61% dengan kriteria efektif. Dari data tersebut menunjukkan bahan ajar pembelajaran layak digunakan berdasarkan respon pendidik dan keefektifan yang dilakukan oleh peserta didik maka pengembangan modul matematika layak digunakan di sekolah. AbstractThis study aims to develop, determine the response and effectiveness of problem-based mathematical modules on vector material. This type of research is research and development or better known as Research and Development (R&D). The approach model used in this study is ADDIE. Data analysis techniques in this study were used to calculate the validity of the validators, the response of educators and students, and the effectiveness of mathematics teaching materials. The results of the validation test conducted by the validator are 3.24 the criteria are quite valid. The results of educator responses 3.21 with interesting criteria, response to small-scale trials of 3.4 with very interesting responses and field trials of 3.8 with very interesting responses. The results of the effectiveness test conducted during the field test got a percentage of 61% with effective criteria. From these data it shows that instructional materials are feasible to use based on the educator's response and effectiveness carried out by students, so the development of mathematical modules is appropriate for use in schools.
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