Developing students’ writing skills in mathematical problem solving classroom using lesson study and open approach

Abstract

The purpose of this research was to develop students’ writing skills in mathematical problem solving classroom using Lesson Study and Open Approach. Target groups were 1^st grade students in fourteen mathematics classrooms using Open Approach as a teaching approach. Data were collected by using questionnaire of students’ learning skills. The research findings found that students’ writing skills in mathematics classroom using open approach were as follows; 1) students took note follow the rule of writing in notebook. 50%), 2) students wrote a well organize of their ideas in notebook. (21.43%), 3) students presented their ideas using picture or table and found their fault in presentation or explained their ideas and others’ ideas. (85.71%), 4) students wrote a summarize of the procedure, reasonable and easy to understand and found advantage and different from their friends’ presentation. (57.14%), 5) students explained their reasons consistent with expectations and could be summarized their ideas based on the problems (35.71%).