Abstract:
The purposes of this research were 1) to compare the mathematical problem solving skill of grade 6 students after obtaining learning activity management using problembased with DAPIC with the criterion of 70 percent and 2) to compare mathematical connection skill of grade 6 students after obtaining learning activity management using problembased with DAPIC with the criterion of 70 percent. The sample was 24 students of grade 6/1 in the second semester of the 2021 academic year at Bannongbon School, Trat Province. They were selected by the cluster random sampling technique. The research instruments used in this research consisted of 1) six lesson plans by using problem-based learning activities with DAPIC, and 2) mathematical problem solving skill and mathematical connection skill test with reliability of 0.79. The data were analyzed by mean, standard deviation, and t-test for one sample. The research results were that the mathematical problem solving skill of grade 6 students after obtaining learning activity management using problembased with DAPIC was higher than the criterion of 70 percent at .05 level of significance. The mathematical connection skill of grade 6 students after obtaining learning activity management using problem based with DAPIC was higher than the criterion of 70 percent at .05 level of significance.