A STUDY OF ACADEMIC ACHIEVEMENT USING MECHANICS OF MACHINES LEARNING ACTIVITY KITS WITH COOPERATIVE LEARNING MANAGEMENT USING STAD TECHNIQUE IN VOCATIONAL CERTIFICATE RROGRAM

Abstract

The objectives of this research were 1) to compare students’ learning achievement before and after instruction using a set of mechanics of machines learning activities integrated with the cooperative learning technique STAD among vocational certificate students, and 2) to compare students’ problem-solving ability after instruction with the 70 percent criterion using the same instructional approach. The sample group used in this study consisted of 18 third-year vocational certificate students in the Automotive Department at Nakhon Si Thammarat Technical College during the first semester of the academic year 2025, comprising one classroom. The research instruments employed in this study were: (1) a set of learning activities in mechanics of machines integrated with cooperative learning using the STAD technique, (2) lesson plans for the mechanics of machines course, (3) an achievement test for the third-year mechanics of machines course, and (4) a problem solving ability test.  Data were analyzed using mean, standard deviation, and t-test.

The results of the study revealed that: (1) the students who learned through the mechanics of machines learning activity set integrated with cooperative learning using the STAD technique had significantly higher post-test learning achievement scores than their pre-test scores at the .05 level. The average post-test score was higher than the pre-test score, which was consistent with the research hypothesis. (2) The students’ problem solving ability after learning with the mechanics of machines learning activity set integrated with cooperative learning using the STAD technique was significantly higher than the 70 percent criterion at the .05 level. The average post-test score was 78.89 percent, which was consistent with the research hypothesis.