Abstract
The survey aims to know how analytical thinking is taught at high school classrooms.
Depending on 102 teachers' responses on the survey for all high schools in Ibaraki prefecture, the
results are followings. Firstly, less than half teachers teach the analytical reasoning through the
typical problem on the survey. Secondly, the ratio of teachers who did not write the reasoning for
students' understanding of the problem solution is larger in the case of experienced or higher
achievers' schools teachers. The ratio of the teachers who do not teach analytical reasoning on the
problem was improved through the survey.
