PENGEMBANGAN LKS MATERI PENURUNAN TITIK BEKU DAN TEKANAN OSMOTIK BERBASIS DISCOVERY LEARNING

Melia Devita, Nina Kadaritna, Ila Rosilawati

Abstract


This research use R&D method had been done with aim to describe the validity and practically of discovery learning-based student worksheets. The stages of research development were started from preliminary study, product development, and preliminary field testing. Preliminary field testing was conducted in the 1st science of 11th grade at SMA Kosgoro Bandar Sribhawono to observe student worksheets practically. Based on validation expert to readability, construction, and content suitability aspect were 80%; 87.37%; and 83.33%, respectively. Based on students responses to readibility and attractiviness aspect were 90.5% and 88.63%, respectivaly. Based on teachers response to readability and attractiviness, and content suitability aspect were 88.57%; 89.10%; and 90%, respectively. Base on these results, it could be concluded that the student worksheets have very high validity and practically.

Penelitian ini merupakan penelitian pengembangan yang bertujuan untuk mendeskripsikan validitas dan kepraktisan LKS berbasis model discovery learning. Penelitian ini dilakukan dengan mengunakan metode penelitian dan pengembangan (R&D). Tahapan penelitian pengembangan ini dimulai dari studi pendahuluan, pengembangan produk dan uji coba terbatas. Uji coba terbatas dilakukan pada kelas XI IPA 1 SMA Kosgoro Bandar Sribhawono untuk mengetahui kepraktisan LKS. Hasil yang diperoleh dari validasi ahli pada aspek keterbacaan, konstruksi dan kesesuaian isi secara berturut-turut yaitu 80%; 87,37% dan 83,33%. Hasil respon siswa pada aspek keterbacaan dan kemenarikan secara bertutut-turut yaitu 90,5% dan 88,63%. Hasil respon guru pada aspek keterbacaan, kemenarikan dan kesesuaian isi secara berturut-turut yaitu 88,57%; 89,10% dan 90%. Hasil penelitian ini menunjukkan bahwa LKS yang dikembangkan memiliki validitas dan kepraktisan yang sangat tinggi.

Kata kunci: discovery learning, LKS, pendekatan saintifik, penurunan titik beku, tekanan osmotik


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