Language and Symbol Students Use in Thai Mathematical Classroom of Lesson Study and Open Approach

摘要

This study aims to investigate language and symbol students use in Thai mathematical classroom in the context of Lesson Study and Open Approach. The results reveal that the students use language and symbol in three characteristics. Firstly, the students use mathematical symbols to represent mathematical operations. Secondly, the students use oral words to communicate their ideas of mathematical operations. Thirdly, the students draw figures and use diagrams to communicate their ideas of mathematical operations.