RESULTS OF LEARNING MANAGEMENT ON THE FACTORIZATION OF ONE-VARIABLE QUADRATIC POLYNOMIALS USING THE STAD TECHNIQUE COMBINED WITH THE TGT TECHNIQUE ON ACADEMIC ACHIEVEMENT IN MATHEMATICS OF GRADE 8 STUDENTS

Abstract

The objectives of this research were to: 1) compare learning achievement in mathematics on the factorization of one-variable quadratic polynomials among Grade 8 students before and after using the STAD combined with TGT cooperative learning techniques, 2) compare students’ learning achievement in mathematics on the factorization of one-variable quadratic polynomials among Grade 8 students after being taugh using the STAD combined with TGT cooperative learning techniques against a criteria level of 70%, and 3) study students’ satisfaction towards mathematics on the factorization of one-variable quadratic polynomials among Grade 8 students after being taugh using the STAD combined with TGT cooperative learning techniques. The population comprised Grade 8 students from Rattanakosin Somphot Bangkhen School in Bangkok in the second semester of the academic year 2022, totaling 450 students in 11 classrooms. The sample group consisted of 40 students from one randomly selected classroom. The research tools included four lesson plans, 10 hours on the factorization of one-variable quadratic polynomials, pre- and posttests on the same topic have reliability values of test part 1, multiple choice, 4 options, using Kuder-Richardson's KR-20 formula. (Kuder-Richardson) was equal to 0.85 and the second part of the subjective test using the alpha coefficient formula according to Cronbach's method was equal to 0.72. and a satisfaction questionnaire. The index of stability (IOC) was 0.98. The statistics used for data analysis included mean, standard deviation, and t-test.
The research findings revealed that: 1) the learning achievement in mathematics on the factorization of one-variable quadratic polynomials among Grade 8 students using the STAD combined with TGT cooperative learning techniques was higher after the learning at the statistical significance level of .05, 2) the compare students’ learning achievement in mathematics on the factorization of one-variable quadratic polynomials among Grade 8 students after being taugh using the STAD combined with TGT cooperative learning techniques was higher than the 70% criteria level at the statistical significance level of .05, and 3) the study students’ satisfaction towards mathematics on the factorization of one-variable quadratic polynomials among Grade 8 students after being taugh using the STAD combined with TGT cooperative learning techniques revealed that the students’ satisfaction was at the high level. (M = 4.39 S.D. = 0.05).