Development of Learning Outcomes on Volume Measurement Problem Solving through Cooperative Learning with STAR Strategies for 1st Year Secondary School Students at Thepsatri Rajabhat University Demonstration School

Abstract

This research aims to 1) compare the mathematics learning outcomes on volume measurement problem-solving for first year secondary school students at Thepsatri Rajabhat University Demonstration School before and after implementing cooperative learning with STAR strategies. 2) To compare the students' problem-solving abilities in mathematics before and after the cooperative learning with STAR strategies against the 70% criterion, promoting participation, analytical thinking, and collaborative problem-solving. The sample consisted of forty-five secondary school students in the first year, selected through purposive sampling. The research instruments included a lesson plan using group work methods and a test on volume measurement problem-solving. The statistics for data analysis included mean, standard deviation, and t-test.

The results of the research were as follows 1) The students' mathematics learning outcomes on volume measurement problem-solving after the cooperative learning with STAR strategies were higher than before the intervention, with a mean score of 11.98, which increased by 3.62 points, representing a percentage increase of 22.63%. The t-test results met the criteria. 2) The students' ability to solve mathematical problems after the cooperative learning with STAR strategies exceeded the 70% criterion, with a mean score of 11.98 and a standard deviation of 1.96.