1, Xiao Chen practices her mathematical thinking every day. The knowledge points are condensed into a short video of 3-5 minutes, covering more than 80% of the whole subject in the high-complete version. Xiao Chen's mathematical thinking is widely practiced every day.

2, Xiao Chen's mathematical thinking practice has examples every day, step by step, and then extrapolate, which can help improve grades and make children fall in love with learning.