The Development of Learning Achievement of Chemistry and Group Working Behavior of Grade 11 Students Using Inquiry Method (5E) Together with Problem Based Learning

Abstract

     The aims of this research were 1) to compare learning achievement of chemistry in the topic of polymer of grade 11 students before and after learning by using the inquiry method (5E) with problem-based learning. The research tested differences between pretest and posttest with t-test and 70 percent criterion, and 2) to study group working behavior of grade 11 students using the inquiry method (5E) with problem-based learning. The target group were 24 grade 11 students in the second semester of the 2023 academic year of Phrabangwittaya School in Nakhon Sawan Province, which were selected by using purposive sampling. The research instruments were Learning Management lesson plans of the inquiry method (5E) together with problem-based learning, learning achievement test, and group working behavior questionnaire. The discrimination index / IOC value/ research instrument reliability were 0.40-0.80 / 1.00 /0.79, respectively, indicating that the research instrument can be applied to the target group. The results showed that the post-test scores after learning with the inquiry method (5E) together with problem-based learning  ( =32.54) were higher than the pre-test scores ( =13.79) and the specified criteria of 70 percent at the .05 level of significance and overall group working behavior was at a good level. It could be concluded that learning achievement and effective teamwork skill can be developed using the inquiry method (5E) together with problem-based learning.