The Effects of Using Concrete Pictorial Abstract (CPA) Approach on the Mathematical Concepts of Fifth Grade Students in Addition, Subtraction, Multiplication and Division of Fractions

Abstract

         The purposes of this research were 1) to study Fifth Grade students’ mathematical concepts of addition, subtraction, multiplication and division of fractions during learning from activities using CPA approach, and 2) to compare the percentage of post-test scores of Fifth Grade students on addition, subtraction, multiplication and division of fractions with the 70 percent criterion. The research sample consisted of 15 Fifth Grade students from the Demonstration School (Elementary) of Srinakharinwirot University, Prasarnmit during the first semester of the academic year 2021, obtained by cluster random sampling using the classroom as the sampling unit. The research instruments included: (1) the lesson plans using CPA approach, and (2) a mathematical concept test. The data were analyzed using the percentage, mean, standard division, and t-test. The research findings showed that 1) during the learning activity, most students’ understanding levels were at the complete understanding level, and 2) after the learning activity, the percentage of post-test scores was 84.67 which was higher than the 70 percent criterion at the .05 level of statistical significance.