The so-called new thinking mathematics is an activity teaching, which is an entertaining teaching through some activities or games. For example, put a puzzle on the blackboard, ask some questions, let the children think for themselves, give full play to their imagination and thinking ability, and deepen their impressions at the same time. New thinking mathematics does not need to be too cautious about the knowledge in books. The knowledge in books is more regular, while the knowledge in activity teaching is more flexible. Neither of them is the same.