Mathematical Problem Solving Ability on Set for Mathayomsuksa 4 Students in Classroom Using Open Approach

Abstract

The purposes of this research were 1) to study Mathematical problem solving ability on Set of Mattayomsuksa 4 students after receiving learning activities using Open Approach with 70 % criterion.  2) To study the satisfaction with organizing learning activities using Open Approach of Mathayomsuksa 4 students. The target group used in this research were 35 Mathayomsuksa 4 students in the first semester of the academic year 2022, Kanchanaphisek Wittayalai Surat Thani School, acquired by purposive sampling. The research tools consisted of 3 lesson plans design by Open Approach concept, 3 subjective questions on mathematical problem-solving ability on Set and the students' satisfaction questionnaire towards the learning activities by using Open Approach. The research was conducted by the procedure according to organizing learning activities using Open Approach, after which Mathematical problem solving ability on Set and the students' satisfaction questionnaire was measured. Statistical analysis was performed using  , S.D. and One Sample T- test. The results showed that Mathematical problem solving ability after receiving learning activities of Mathayomsuksa 4 students using  Open Approach were higher than the criteria of 70 percent with a statistical significance of .05 and their overall satisfaction with learning mathematics using open approach, satisfied at the highest level ( = 4.57,S.D.= 0.53)