Penelitian ini bertujuan untuk menghasilkan sebuah desain didaktis pada materi trigonometri. Metode yang digunakan dalam penelitian ini adalah design didactical research yang dikembangkan oleh Suryadi. Metode pengumpulan data yang digunakan dalam penelitian ini, yaitu: tes, wawancara, observasi, dokumentasi, dan angket. Penelitian ini dilakukan pada kelas XI IIK sebagai kelas yang telah menerima materi trigonometri untuk mengetahui hambatan belajar yang dialami siswa pada materi trigonometri. Setelah ditemukannya hambatan belajar yang dialami siswa, peneliti menyusun desain didaktis hipotesis yang disesuaikan dengan hambatan belajar siswa dan alur pembelajaran siswa. Desain didaktis hipotesis ini diimplementasikan kepada kelas X IIK 2 sebagai kelas implementasi yang belum pernah mendapatkan materi trigonometri. Dari hasil analisis uji hambatan belajar preimplentasi dan pascaimplementasi terdapat penurunan hambatan belajar sehingga hambatan belajar dapat terminimalisir dengan dibuatnya desain didaktis hipotesis.
This research is motivated by the Covid – 19 pandemic problem and the need for teachers for learning media that can help in e – learning. The type of research used is research and development which adopt the development of Brog and Gall with 6 stages. The subject of this study were 21 students of class VIIIB there Plered public junior high school who were chosen by proposive sampling. The research design in the test was limited to the assessment phase using the ones group pretest-posttest design. The result of the research and development of the Padlet learning media showed good result, seen from the results of the experts’ assessment. Based on the pre – test and post – test results, the N – Gain value was 0,58 in the good category. The average result of each teacher’s responde to the media to determine the ease and feasilbility of obtaining 95,45% with the predicate was very good, so that the Padlet learning media was suitable for use by teachers in e – learning. The results of the students response obtained presentage on each aspect of the Padlet learning media of 88,92% with the predicate was very good.
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