Abstract:Abstrak. Penelitian ini bertujuan untuk mengetahui kevalidan, kepraktisan dan keefektifan terhadap penggunaan bahan ajar biologi berbasis Jelajah Alam Sekitar (JAS) yang berorientasi pada aktivitas belajar siswa kelas X di SMA Kristen 1 Soe. Metode penelitian yang digunakan adalah metode penelitian dan pengembangan atau Research and Development (R&D), dengan menggunakan model Borg and Gall (1983). Hasil penelitian menunjukkan bahwa bahan ajar yang dikembangkan valid dengan rata-rata persentase 90 persen da… Show more
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