The Development of Mathematical Problems Activities by Using Metacognition to Promote Problem Solving Ability in Ratio and Percentage of Mutthayomsuksa 1 Students

Abstract

This study aimed 1) to develop Mathematical problems activities by using metacognition in ratio and percentage of Mutthayomsuksa 1 students to achieve the criteria 75/75 of the effectiveness, 2) to investigate the efficacy of  Mathematical problems activities by using metacognition in ratio and percentage of Mutthayomsuksa 1 students, 3) to study the results of implementation Mathematical problems activities by using metacognition in ratio and percentage of Mutthayomsuksa 1 students as follows: 3.1) to compare learning achievement of Mutthayomsuksa 1 students who learnt through Mathematical problems activities by using metacognition with the criteria 75 of percentage, 3.2) to compare problem solving ability of Mutthayomsuksa 1 students who learnt through Mathematical problems activities by using metacognition with the criteria 75 of percentage. The sample of the present study was 1 classroom of Mutthayomsuksa 1 students who were selected by cluster random sampling. The instruments used in the study comprised of 1) 3 Mathematical problems activities by using metacognition covered ratio, proportion and percentage which the appropriateness ranged in the most level with 4.70 of mean 2) 30 items of learning achievement test with 4 multiple choices which the discrimination was ranged 0.22 - 0.58 and the reliability was 0.90 3) 5 items of written problem solving ability test which the difficulty was ranged 0.21 - 0.60, the discrimination was ranged 0.40 - 0.75 and the reliability was 0.81. The statistics used in the study consisted of percentage, mean, standard deviation and t-test.

The results revealed that

1. Mathematical problems activities by using metacognition in ratio and percentage of Mutthayomsuksa 1 students achieved the criteria 85.77/76.08 of the effectiveness which higher than the criteria of 75/75.


2. The efficacy of Mathematical problems activities by using metacognition in ratio and percentage of Mutthayomsuksa 1 students shown that there was 0.69 or 69 as percentage.


3. Learning achievement of Mutthayomsuksa 1 students who learnt through Mathematical problems activities by using metacognition was meet the criteria 75 of percentage with .05 statistics significantly.


4. The results of Mathematical problem solving ability of Mutthayomsuksa 1 students who learnt through Mathematical problems activities by using metacognition shown that students performed Mathematical problem solving meet the criteria 75 of percentage with .05 statistics significantly.