The Development of Learning Achievement in Mathematics on The Subject of Quadratic Equations with One Variable of Grade 9 Students by Organizing Cooperative Learning by Using the STAD Technique Combined with the Problem-Solving Process Based on The Concept of Polya

Abstract

The purpuses of this research were to (1) study mathematics learning achievement on quadratic equations with one variable of the students who learned with  STAD technique along with problem-solving processes based on Polya's concept comparing against the criterion of 80 percent (2) compare the achievement before and after studying the subject of quadratic equations in one variable through cooperative learning using the STAD technique along with problem-solving processes based on Polya's concept.  The sample group used in the research was 28 Mathayom 3 students, obtained from cluster random sampling. The tools used in the research were 1) a mathematics lesson plan 2) a mathematics achievement test on the subject of quadratic equations in one variable.  The statistics for the data analysis included mean, standard deviation, and percentage.

The research were as follows:

1. Academic achievement on quadratic equations in one variable Through cooperative learning using the STAD technique along with problem-solving processes based on Polya's concept. The score was 88.75 percent, which was higher than the specified criteria of 80 percent with statistical significance at the .05 level.
2. Results of comparing achievement before and after studying cooperative learning using the STAD technique together with the problem solving process according to Polya's concept of quadratic equations in one variable. After studying was significantly higher than before studying at the .05 level.