DEVELOPMENT OF STUDENT WORKSHEETS ORIENTED BY SCIENCE PROCESS SKILLS LAVOISIER LAW MATERIALS

Abstract

Abstract

This research aims to produce valid and practical Lavoisier's Law Worksheet oriented to Science Process Skills. The method used is development research with the ADDIE model, limited to the Analysis, Design, and Development stages, and combined with Tessmer's formative evaluation (self-evaluation, expert review, one-to-one, and small group). The field test stage will be conducted in the next research. Data were collected through interviews, validation sheets, walkthroughs, and practicality questionnaires. The results showed that at the expert review stage, the validity based on Aiken's V score reached 0.96 for design aspects (high), 0.96 for pedagogical aspects (high), and 0.97 for material aspects (high). At the one-to-one stage, the practicality score reached 88.89% (very practical), while at the small group stage it reached 94.44% (very practical). Thus, the developed Lavoisier's Law Worksheet oriented to Science Process Skills was declared valid and practical.

Keywords: Development research, LKPD, science process skills, Lavoisier's law