Development and Assessment of Learning Package with Computer- aided Instructional (CAI) Materials on Special Relativity for Grade 12 General Physics

This study developed and assessed a learning package with computer-aided instructional (CAI) materials on special theory of relativity for grade 12 general physics. There were two phases in the study employing quantitative research design: (1) the evaluation of the developed learning package (descriptive) and (2) the testing of effectiveness (quasi-experimental). Quantitative method was used to the gather and examine of numerical data to determine causal associations (Rana et al., 2021). The following are the major findings: (1) the developed learning package had “very good” quality in terms of content, instructional value, and technicalities; (2) a significant difference in the control groups and experimental group’s posttest scores was established, favoring the latter; (3) a significant development was observed in the experimental group’s achievement test scores compared to that of the control; and (4) the gain scores from the achievement test also had significant differences numerically, favoring the experimental group. Therefore, the developed learning package on special theory of relativity was an effective instructional tool in teaching and learning. This suggests that the learning package is a good supplement for the delivery of the complex abstractions of the special relativity to learners.