IMPROVING THE EFFECTIVENESS OF ORGANIC CHEMISTRY EXPERIMENTS THROUGH MULTIMEDIA TEACHING MATERIALS FOR JUNIOR HIGH SCHOOL STUDENTS

The purpose of the study aimed to explore the effects of three different forms of the multimedia teaching materials on the achievements and attitudes of junior high school students in a chemistry laboratory context. The three forms of the multimedia teaching materials, static pictures, video, and animation, were employed to teach chemistry experiments to 54 eighth-grade students in Pingtung County, Taiwan. The research tools included the self-editing questionnaire of learning achievement, the experimental step checklist, and the learning feedback questionnaire. Descriptive statistics and ANCOVA were administered to analyze the collected data. The findings of the study indicate that the video and animation have more significant effects on promoting students' learning achievements in a chemistry laboratory context than static pictures in terms of operating equipment, technical operation, experimental procedures, and observation performance. Additionally, the students indicated that video presentation can best assist them in understanding the experiments. Finally, the findings and suggestions of this study can be useful references for multimedia designers, teachers, and school administrators.