Developing the Ability to Solve Mathematical Problems of Grade 9 Students Using Problem-based Learning together with Learning Management Using KWDL techniques

Abstract

This research has two objectives: 1) to compare the ability to solve problems in the mathematics subject of Grade 9 students after learning in the problem-based teaching format combined with the KWDL technique with the 70 percent criterion 2) to compare the ability to solve problems in the mathematics subject of Grade 9 students at Wangsammorwitthayakhan School before and after learning in a problem-based teaching format combined with a teaching model using the KWDL technique. There were 41 sample students in the research, namely Grade 9 students which were obtained from a simple random sampling method (Simple Random Sampling). Tools used in the research included 8 problem-based teaching plans combined with the KWDL technique teaching model, 60 minutes per plan, and 5 mathematics problem-solving tests. Statistics for data analysis were average value, standard deviation, percentage, and hypothesis testing using statistics (t-test) it was found that 1) students were able to solve problems in the mathematics subject after organizing the learning. It is 74.63 percent, which were higher than the 70 percent criteria, with statistical significance at the.05 level. 2) Students' ability to solve problems in mathematics after studying was higher than before studying with statistical significance at the.05 level..