Not just math. According to Cha official website's inquiry, the elementary and high thinking courses of Komori Education Technology Co., Ltd. are not limited to mathematics, but also include Chinese, English, physics, chemistry and other subjects. Xiaodu and Gaosi Education jointly created Z20Plus Gaosi Edition, a learning tablet. Learning resources are constructed from all subjects of Chinese, mathematics, English, physics and chemistry in Grade 4 1 to 10. Therefore, the curriculum of high thinking in primary schools is not just mathematics.