he Development of Mathematical Problem-Solving Ability Using Open Approach Combined with KWDL Technique for Grade 5 Students

Abstract

This research is an action research study aimed at 1) Developing problem-solving skills in Grade 5 students through the Open Approach combined with the KWDL technique, with the goal of achieving an average score of at least 70% and having at least 70% of the students score 70% or higher of the total score. 2) Improving academic achievement in Grade 5 students through the Open Approach combined with the KWDL technique, aiming for an average score of at least 75% and having at least 75% of the students score 75% or higher of the total score. and 3) Investigating the satisfaction of Grade 5 students with learning management using the Open Approach combined with the KWDL technique. The target group consisted of 17 Grade 5 students from a small school in the Northeastern region of Thailand, selected through purposive sampling. The research instruments included 1) Lesson plans 2) A problem-solving ability test in mathematics 3) An academic achievement test 4) A satisfaction questionnaire 5) An interview form 6) A behavioral observation form The statistics used for data analysis were percentage, mean, and standard deviation.

The research findings were as follows

1. In terms of problem-solving ability in mathematics, 15 students achieved an average score of 82.75% of the total score, accounting for 88.24% of the target group—exceeding the set criterion.

2. Regarding academic achievement, 15 students achieved an average score of 83.53% of the total score, also accounting for 88.24% of the target group—again exceeding the set criterion.

3. Student satisfaction with the learning management using the Open Approach combined with the KWDL technique, on the topic of volume and capacity of rectangular prisms, had an average score of 3.89 with a standard deviation of 0.91, which is considered a high level of satisfaction.