Study of The Effectiveness of Based Learning Programs Problem Guided on The Reaction Rate Topic

Abstract

The study on improving st Aimed students, critical thinking skill s and Investigating excellences and problems faced in implementing guided problem-based Learning program. Preliminary field testing in the study used one group pretest-posttest design Samples of the study were 11^th grade students at one of senior high school in West Seram residence_consist ing of 36 students. The findings of the study were as follows. Firstly, the program could improve critical thinking skills and conceptual understanding of students. Secondly, the excellence of the program was it could help teachers to explore students 'ideas and develop students' critical thinking skills. Thirdly, problems encountered in implementing it were (a) there was lack of qualitative problems practiced, (b) some students with low academic achievement was difficult, to follow the program, (c) some conceptual questions were difficult, to be answered the by them, (d) they forgot some chemical concepts learned in the previous grade, and (e) implementation of the program was time-consuming. Next, the teacher and students were enthusiastic to spare anticipate in the teaching and learning Finally, students respond ed it positively and they hope it could be further implemented to teach other chemistry topics and events to teach other matters subject.