The aim of this research was 1) to develop the students’ science academic achievement in order to pass the criteria of 70 percent of full score 2) to study the students’ satisfaction toward the Inquiry-Based Learning and Problem-Based Learning activities. The research study was conducted on 38, 1st-grade students who were 6-7 years old in academic year 2018 from Kasetsart University Laboratory School Kampaeng-Saeng Campus Educational Research and Development Center, Nakorn Pathom province, Thailand. The research methodology is classroom action research. The research instruments were: 1) 5 lesson plans of the Inquiry-Based Learning and Problem-Based Learning activity, 2) the science academic achievement test, 3) the observation form, and 4) the satisfaction toward learning activity test. In the study, data were obtained via the one group pretest-posttest design; analyze the data by using mean, percentage, standard deviation and t-test dependent group. The results were 1. The students’ science academic achievement mean scores in pretest and post-test were 54.5 and 82.5 percent respectively. It’s visible that the students’ mean score post-test higher than pretest, statistical significance at the level of 0.05 and passed the criteria in post-test. 2. The level of students’ satisfaction toward Inquiry-Based Learning and Problem-Based Learning activities was in high level. The research found that activities were effect students to learning deeply, assertive, comment, enthusiastic, responsibility, and enjoy to study. Students also analytical and solve the problems under working together, searching information from a variety of learning sources and summarize what they have learned.
Mintra Singhanak, Kasetsart University Laboratory School, Thailand
Stream: Educational Research
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