DEVELOPMENT OF MATHEMATICAL PROBLEM-SOLVING ABILITY USING SSCS TEACHING MODEL WITH GRAPHIC DIAGRAM TECHNIQUE ON THE TOPIC OF FUNCTIONS FOR MATHAYOM 5 STUDENTS AT CHAIYA WITTAYA SCHOOL, SURAT THANI PROVINCE

Abstract

This research aims to 1) Develop a learning management plan using the SSCS teaching model combined with a graphic organizer technique with an efficiency standard of 80/80, 2) To compare students’ mathematical problem-solving abilities before and after learning through the SSCS teaching model with the graphic organizer technique, and 3) To study students’ satisfaction with the learning management based on the SSCS teaching model with the graphic organizer technique. The sample consisted of 36 Mathayom 5 (Grade 11) students from Chaiya Wittaya School in the second semester of the 2023 academic year. The sample was obtained using cluster sampling. This study employed a quasi-experimental design with a one-group pretest-posttest model. The research instruments included: 1) 15 lesson plans, 2) A mathematical problem-solving ability test with 8 items, and 3) A 14-item student satisfaction questionnaire. The data were analyzed using mean, standard deviation, and a paired-sample t-test. The research findings revealed that: 1) The lesson plans using the SSCS teaching model with the graphic organizer technique had an overall efficiency of 85.38/83.26, which was higher than the specified standard; 2) Students’ post-instruction mathematical problem-solving ability ( = 37.25, S.D. = 2.86) was significantly higher than the pre-instruction scores ( = 11.33, S.D. = 1.20) at the .05 level of statistical significance; and 3) Students’ satisfaction with the SSCS teaching model integrated with the graphic organizer technique was at a high level ( = 4.31, S.D. = 0.63).