Development of the Ability in Physics Problem - Solving and Attitude toward Physics of Matthayomsueksa 5 Students Learned by using Problem-based Learning with Concept of Metacognition

This research aimed 1) to develop ability in physics problem-solving of Matthayomsueksa 5 students by using problem-based learning with concept of metacognition and to pass the criteria of 70 percent of all score from ability in physics problem-solving test, 2) to study attitudes toward physics of students who learned by using problem based learning with concept of metacognition. The target group was 43 Matthayomsueksa 5 students from Sarakhampittayakhom School, Mahasarakham province, in the second semester of the academic year of 2016 and obtained by using purposive sampling technique. The instrument used in this study were 1) lesson plan by using problem-based learning with concept of metacognition, with 6 plans for 9 hours of learning. 2) 3 sets of ability in physics problem-solving test, each set has 2 questions. 3) observation forms for observing behaviors of ability in physics problem-solving. 4) 15 items 5-rating scale attitudes toward physics test. Whereas action research approach used in this study composed of 3 loops, which the first loop used for the first to the second plan, the second loop used for the third to the forth plan, and the third loop used for the fifth to the sixth plan. The statistics used for analyzing the collected data were mean, standard deviation and percentage. The results of the study were as follows: 1. Matthayomsueksa 5/8 students who learned by using problem based learning with concept of metacognition showed ability in physics problem-solving pass the criteria (70 percent). The details of each loop were as follows in 1,2 and 3 loop were 36.7, 90.7 and 100 percentage, respectively. 2. The amount of Matthayomsueksa 5/8 students who learned by using problem based learning with concept of metacognition had very good, good and moderate levels of attitude toward physics were 18, 22 and 3 peoples, respectively. In conclusion, problem-based learning with concept of metacognition learning had effectiveness and influenced to develop ability in physics problem-solving and attitude toward physics of target group. Therefore, teacher can use this learning by applying in a suitable situation