Pemanfaatan Barang Bekas Dalam Pembuatan Alat Peraga Dengan Menggunakan Model Inquiry Discovery Learning Terbimbing

Physics props by using second-hand goods have not been there in school yet. Therefore, props are expanded with the aim to know the feasibility of props made by utilizing second-hand items on the subject of static fluid using Inquiry Discovery Learning (IDL) guided models. Specific objectives of the study are to describe: (1) the validity of props and guidance manuals, (2) the practicality of props, (3) the effectiveness of props and (4) the achievement of students' science process skills. The research design used the research and development of the ADDIE model. Data obtained through validation sheet, observation sheet of RPP implementation, the test of learning result and students’ worksheet. Data were analyzed by quantitative and qualitative description. The results showed: (1) the validity of props by 70% and the validity of the guidance LKS of 79% in quite valid criteria,(2) the practicality of props 70% in good criteria, (3) the effectiveness of props 0.62 in the average category, and (4) achievement of students' science process skill averaging 86,92% in very good criteria. Obtained conclusions of props made by utilizing second-hand items on the subject of static fluid using IDL guided models are considered feasible to use.