The Effects of Learning Using Team Assisted Individualization on Mathematics Learning Achievement and the Satisfaction on Linear Inequality in One Variable of Matthayom Suksa 3 Students

The purposes of this research were to study the effects of team assisted individualization on mathematical learning achievement and the satisfaction on linear inequality in one variable of Matthayom Suksa 3 students. The sample group consisted of 40 Matthayom Suksa 3/1 students in the second semester of the academic year 2023 by cluster random sampling. The tools used in the research include : mathematics lesson plans on linear inequalities in one variable using methods of team assisted individualization, mathematics achievement test on linear inequalities in one variable and a satisfaction survey for mathematics learning activities. Data were analyzed using averages, percentages and t -test (Dependent Sample). The results of the study were as follows: 1.1) Mathematiccs learning achievement after studying is higher than before studying which was statistically significant at .01 level, 1.2) 82.5 percent of students met the requirements for mathematics learning achievements. The overall average score of the entire class was 17.2, accounting for 86 percent of the full score, which was higher than the required 70 percent threshold, and 2) The assessment of students’ satisfaction revealed that the average level of satisfaction was
high. The overall mean is 4.25 and the standard deviation is 0.84.