Developing and implementing guide materials for chemistry teachers for the chemical reaction unit

Developing and Implementing Guide Materials for Chemistry Teachers for the Chemical Reaction Unit Teachers need extra instructional materials because of the fact that textbooks used in planning and presenting lessons are insufficient. In this study, guide materials concerning "Chemical Reaction Unit" in high school chemistry 2 curriculum were developed, implemented, and evaluated. The materials take into consideration students' preconceptions and misconceptions. In the study, two tests were developed in order to determine students' beginning levels and preconceptions and guide materials were developed for "Chemical Reaction Unit". The tests and materials were piloted in 2000-2001 academic year. In this process, 12 chemistry teachers at different high schools in Trabzon were interviewed and the materials were reviewed in regard to their suggestions. To remediate the students' misconceptions, activities were placed into materials as much as possible. In the implementation process, two classes, experimental and control groups, were selected. Materials were implemented in 2001-2002 academic year. Before and after the implementation of the materials, two tests were implemented to the both groups as pre and post-tests. The collected data were analyzed by using SPSS program and discussed in detail. In short, when the test results were compared with t test, at the pre-test there were no significant difference between two groups (p=0.05), but post-test results showed that there were a significant difference between the groups (p=0.001). In addition, the experimental group students were more successful than the control group students in remediation of the misconceptions. From the results, some suggestions were made to program developers, researchers and teacher educators. Keywords: Chemistry Education, Curriculum Development, Concept Teaching, Chemical Reactions, Guide Material VII