Mathematical Creative Process Wallas Model in Students Problem Posing with Lesson Study Approach

Creative thinking is very important in the modern era so that it should be improved by doing efforts such as making a lesson that train students to pose their own problems. The purposes of this research are (1) to give an initial description of students about mathematical creative thinking level in Problem Posing Model with Lesson Study approach in Digital Class, (2) to describe the teaching quality of Problem Posing Model with Lesson Study approach in Digital Class toward students' mathematical creative thinking, and (3) to find the pattern of students' mathematical creative thinking process of Wallas Model in Problem Posing Model with Lesson Study in Digital Class at every creative thinking level. This research used mixed method design. Validation, observation, and test were used to collect the data of teaching quality. The results show that (1) an initial description of students' mathematical creative thinking level (CTL) was in the range of CTL 4 to CTL 1, (2) Problem Posing Model with Lesson Study approach in Digital Class had quality to improve creative thinking, and (3) the patterns of students' mathematical creative thinking at every stage of Wallas Model are various according to their own creative thinking level.