<![CDATA[Perkembangan teknologi memiliki pengaruh dibidang pendidikan. Pengaruh perkembangan tersebut dapat dimanfaatkan untuk meningkatkan implementasi pendidikan guna mengembangkan bahan ajar. Didalam proses pembelajaran, bahan ajar adalah hal yang sangat penting karena bahan ajar adalah sumber informasi belajar bagi peserta didik. Saat ini pengembangan bahan ajar banyak dilakukan, salah satunya dengan membuat bahan ajar elektronik atau e-book. Pada penelitian ini, akan dikembangkan e-book yang berbasis multi representasi pada materi getaran harmonik sederhana. Penelitian dilatarbelakangi oleh anggapan peserta didik bahwa fisika itu sulit, sehingga diperlukan pengembangan bahan ajar dalam pembelajarannya. Metode penelitian yang digunakan adalah Research and Development (RD) dengan model ADDIE melalui 5 tahapan; Analysis, Desgin, Development, Implementation dan Evaluation. Penyusunan e-book dilakukan berdarakan hasil angket kebutuhan buku ajar dan angket penggunaan buku ajar. Hasil validasi konten dan media e-book terkualifikasi “baik” dan layak untuk digunakan dalam pembelajaran. Tingkat keterbacaan e-book sebesar 90,44% dan peserta didik juga merespon e-book ini dengan respon yang positif. Kata kunci : ADDIE, e-book, getaran harmonik sederhana ABSTRACT Technological developments have an influence in the field of education. The influence of these developments can be used to improve the implementation of education in order to develop teaching materials. Technological developments have an influence in the field of education. The influence of these developments can be used to improve the implementation of education in order to develop teaching materials. In the learning process, teaching materials are very important because teaching materials are a source of learning information for students. Currently, the development of many teaching materials is done, one of which is by making electronic teaching materials or e-books. In this research, an e-book will be developed based on multiple representations on simple harmonic osilation material. Research is motivated by the assumption of students that physics is difficult, so it is necessary to develop teaching materials in learning. The research method used is Research and Development (RD) with the ADDIE model through 5 stages; Analysis, Design, Development, Implementation and Evaluation. The e-book was prepared based on the results of a questionnaire on the need for textbooks and a questionnaire on the use of textbooks. The results of the content validation and e-book media are qualified "good" and suitable for use in learning. The e-book readability rate is 90.44% and students also respond to this e-book with a positive response. Key word : ADDIE, e-book, simple harmonic osilation]]>
