Tulisan ini bertujuan untuk studi pustaka mengenai metode pembelajaran Power teaching. Power teaching adalah metode pembelajaran dengan mengacu pada lima langkah pembelajaran yaitu 1). Class "Yes", 2). Classroom rules (aturan di dalam kelas), 3). Teach "Okay" (Ajar "Oke"), 4). The Scoreboard, 5). Hands and eyes (tangan dan mata) dan Mirror (pencerminan), 6). Switch. Power teaching sesuai dengan kerucut pengalaman Edgar Dale dan memberikan kontribusi kontribusi 70-90 % dari apa yang dikatakan dan dilakukan karena siswa melakukan pembicaraan (giving a talk) atau presentasi dramatik kepada siswa lainya. Metode Power teaching ini cocok digunakan dalam proses pembelajaran sains/fisika dengan memperhatikan beberapa hal berikut ini 1). Konsep yang mudah dipahami dapat diajarkan langsung oleh guru, 2). Konsep yang cukup sulit dapat diajarkan dengan memerintahkan siswa membaca dan memahami kemudian baru mengajarkan kepada teman sebayanya, 3). Evaluasi hendaknya dapat dilakukan untuk mengecek pemahaman siswa karena pembelajaran yang tergolong cepat dan kemungkinan terjadi miskonsepsi, 4). Konsep diajarkan secara bertahap dimana setiap tahapan dijelaskan oleh guru dan dipahami oleh siswa sehingga siswa mendapatkan pemahaman yang utuh dan dimengerti pada akhirnya, 5). Materi yang terlampau sulit bagi siswa harus dipikirkan ulang bagaimana menganjarkanya kepada siswa dengan metode ini. Kata kunci: metode pembelajaran, power teaching, pembelajaran sains
This study aims to develop and determine the feasibility of a physics practicum tool to determine the refractive index of fluids through measurement of apparent depth and real depth. The product development method used in this study was Research and Development (R&D) with the ADDIE model. The results of this study, the refractive index of water is n = (1.3158112 ± 0.0000303) with a relative error of 1.07%, the refractive index for saltwater is n = (1.4476904 ± 0.0000387) with relative error by 1.37%, the refractive index for sugar water is n = (1.355680 ± 0,000145) with a relative error of 1.02%, and the refractive index for cooking oil is n = (1.4525593 ± 0.0000694) with a relative error of 1.36%. The results of the feasibility test of media experts, material experts and users for practicum tools and practicum guides were 90.69% which included in the Very Good category, 94.17% which was in the Very Good category, 90.62% which was in the Very Good category. Based on the results of these percentages, the practicum tools, and the practicum guides are declared to be suitable as learning media on Optics Geometry material, especially for the determination of the refractive index with real depth and apparent depth.
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