Recently, Japanese school teacher has been demanded to develop the students' thinking ability. So, the focus of this study was to evaluate the effect of teaching method that develops the students' ability of report in science lessons. In this study, I used the worksheet which contains the some basic check points for students' experimental report. The 7th grade fifty-five students were participated in this study and I evaluated the experimental report twice through this research. The result of having compared two reports, descriptions such as "expect with no reason" "lack of method" "result include the conclusions" were reduced. But, descriptions such as "lack of result" or "lack of conclusions that depend on the prospect/result" were not reduced.