Science Process Skills and Science Learning Motivation in Chemistry Learning with STEM Student Worksheets Through Floor Cleaning Formulations

This study aims to develop STEM student worksheets. The research method used is research and development (R&D) using the ADDIE model stages. Determination of the research sample using random sampling method with research subjects are students of class XI IPA 1 SMA Inshafuddin Banda Aceh. The results showed that students' science process skills increased significantly and were significantly different from the pretest based on the T-test. Students' science process skills increased in each indicator with an average N-gain score of 37 belonging to the medium category. Students' motivation to learn science is high with an average score of 87.38% belonging to the very good category.