Development of Scientific Understanding using High Speed Video Analysis Technique : Case study on Projectile Motion

Abstract

Three main purposes of this research were (1) to improve the effectiveness of learning using activity - based tutorials (ABT) on projectile motion with high - speed video technique, (2) to investigate the scientific understanding and (3) to evaluate the progress of normalized gain <g> of Physics and General Science students, Chiang Mai Rajabaht University. Eighty students were divided into 2 groups of experimental and control groups using purposive sampling. Research tools consisted of scientific understanding subjective test on projectile motion, activity - based tutorials with high speed video technique for experimental group, and independent study for the control group. Mean, percentage, and normalized gain were used for statistical analysis. The scientific understanding of the experimental group increased from about 12% to 69%, after studying the topic via a high speed video technique. Higher normalized gain values, <g>, ranging from 0.24 to 0.95 of this sample group than those of the control group, ranging from 0.06 to 0.75 was found.