Development of Mathematical Problem Solving and Communication Abilities Using the Cooperative Learning Technique TGT on Factoring Quadratic Polynomial of Mathayom 2 Students at Banharn Jamsai Wittaya 6 School

Abstract

The research aimed to: 1) compare the learning achievements in mathematics before and after learning by the cooperative learning technique TGT and the achievement after learning with 70 percent criterion 2) compare the problem solving abilities of students after learning by the cooperative learning technique TGT with 70 percent criterion  3) compare the mathematical reasoning abilities of students after learning by the cooperative learning technique TGT with 70 percent criterion and 4) study the satisfaction of the students towards the cooperative learning technique TGT. The statistics used for data analysis were: mean, percentage, standard deviation, t-test for dependent samples and t-test for one sample. The sample group consisted of 25 eighth-grade students at Banharn Jamsai Wittaya 6 School, derived by cluster random sampling. The research instruments were: 1) lesson plans 2) an achievement test 3) an ability test on problem solving and mathematical communication abilities and 4) a satisfaction assessment form. The results showed that: 1) the students’ learning achievement after learning by the cooperative learning technique TGT was higher than that of before and then 70 percent criterion with statistical significance at .05  2) the students’ problem solving after learning was higher than 70 percent criterion at significant level .05 3) the students’ mathematical communication ability after learning was higher than 70 percent criterion at significant level .05 and 4) the level of satisfaction from the student as a whole was the highest level.