ANALYTICAL THINKING ABILITY ON FACTORING POLYNOMIALS OF DEGREE2 USING THE FIVE-STEPPED INQUIRY PROCESS FOR MATHAYOMSUKSA2 STUDENTS

Abstract

The research aimed: 1) to compare the mathematics learning achievement before and after learning factoring polynomials of degree2 using the five-stepped inquiry process; 2) to compare the mathematics learning achievement after learning with the passing criteria of 70 percent; and 3) to study analytical thinking ability on factorization problem of polynomial degree2 of Mathayomsuksa2 students after learning by the five-stepped inquiry process. The target samples were 26 of Mathayomsuksa2 students of Bualuangwitthayakhom School, 2nd semester, academic year of 2020 obtained through cluster sampling of 1 classroom. The research tools were: 1) 8 sets of learning plans, and
2) a 20-item multiple choice test with four choices. The statistics used for data analysis were percentage, mean, standard deviation, one sample t-test, and dependent sample t-test. The findings were as follows: 1) the students’ mathematics learning achievement after learning by using the five-stepped inquiry method was significantly higher than before the study at the level of .05; 2) the students’ mathematics learning achievement after learning by using the five-stepped inquiry method was significantly higher than the set passing criteria of 70 percent at the level of .05; and 3) the students’ analytical thinking ability was found in
2 characteristics: (3.1) the analysis of relation: the students knew the value of each term with integer coefficients, and (3.2) the analysis of principles: students were able to analyze the relation of the coefficients which led them to understand the principle of factorization problem of polynomial degree2.