Bansho (Japanese board writing) is becoming an area of interest among researchers and educators as it could serve as an asset to make a searching inquiry into teaching. This study aims to identify the variations of bansho styles in Japanese schools and draws its data from 10 lessons from a primary school in Japan. All lesson observations were recorded, photographed, and then analyzed. Results of data analysis suggest that there is a variation of bansho styles, which indicates the kind of teaching happening in the classroom, and it relates to the teacher's beliefs and the type of knowledge valued in the lesson.