Abstract:
The purpose of this study to develop an experimental device in the form of
alternative kits and worksheets on light materials for students of SMP/MTs. The
research method used is a Research and Development (R & D). This research
resulted in the kit and worksheet alternate light and optics to students of
SMP/MTs. Developed experimental device has been tested for feasibility through
empirical testing and validation. Data analysis techniques used in this study is a
descriptive analysis, by calculate the index of each indicator instrument
experiment. Instruments of analysis, indicated that the alternative kit with light
and optical worksheet has been fit for use as a medium of learning that may show
light symptoms.
