Development of Computer Assisted Instruction Lessons on Variables and Operators in Scratch Programming for Grade 7 Students at Watpratoomkanavas School (Niphath Harinsut)

Abstract

The Development of a Computer-Assisted Instruction Lesson on Using Variable and Operator Blocks in Scratch Programming for Grade 7 Students at Watpratoomkanavas Municipal School (Nipatharin Sut) The objectives of this study were as follows: 1) To develop a computer-assisted instructional (CAI) lesson that meets the standard efficiency criterion of 80/80, 2) To compare students' learning achievement before and after using the CAI lesson, and 3) To investigate students’ opinion toward the CAI lesson. The research instruments included the CAI lesson, a 30-item pre-test and post-test to measure learning achievement, and the user satisfaction questionnaire towards the CAI lesson. The sample group consisted of 34 Grade 7/1 students from Watpratoomkanavas Municipal School (Nipatharin Sut) during the second semester of the 2024 academic year. The research findings revealed that: 1) The developed CAI lesson demonstrated an efficiency (E1/E2) of 81.57/80.59, which met the specified criterion of 80/80, 2) Students who used the CAI lesson showed significantly higher post-test scores than their pre-test scores at a .05 significance level. 3) Students’ opinions toward the CAI lesson were at the very high level (x ̅=4.66, S.D.=0.53).