The Development of Mathematical Problem - Solving Skills Using Collaborative Learning Management by Investigating 4EX2 with Bar Model to Enhance Mathematics Learning Activities for 5th Graders

Abstract

The aims of this research were 1) to create and evaluate the efficiency of mathematics learning activities using collaborative learning management by Investigating 4EX2 with Bar Model to enhance mathematical problem - solving skills for 5th graders that had the efficiency criteria (E1/E2) at 75/75. 2) to balance mathematical problem – solving skills between pre-learning and post-learning achievement using collaborative learning management by Investigating 4EX2 with Bar Model for 5th graders. Carrying out research into Research and Development (R&D) Process. This was a purposive sampling, 21 students studying in 5th grade, semester 2, academic year 2022, Ban Wang Cha-on School, The Primary Educational Service Area Office Kamphaeng-Phet 2 (PEASOKPP) were eligible as the sample group. The research instruments were included herewith, 1) mathematics learning activities using collaborative learning management by Investigating 4EX2 with Bar Model to enhance mathematical problem - solving skills for 5th graders,                2) Numerical reasoning test. Four mains statistical methods were used in data analysis: mean, standard deviation, percentage, and dependent t-test. Results can be split into two sections: The results on the mathematics learning activities using collaborative learning management by Investigating 4EX2 with Bar Model for 5th graders were developed into four steps as follows: Step 1: Building initiate collaboration, Step 2: Underpinning the Bar Model method with research, Step 3: Inferences and conclusions and Step 4: Expanding on the key ideas. Activities were engaged at the highest level (= 4.40, S.D. = 0.16) and had the efficiency results (E1/E2) at 77.18/79.44, which meets the criteria set.The second section of results showed that 5th graders had mathematical problem-solving skills features in the post-learning achievement; using collaborative learning management by Investigating 4EX2 with Bar Model, which were higher than pretest results. A statistically significant test result was at the .05 (p=0.5).