In other words, the number 8 stands for all that makes a tower. Gather the fine sand into a pagoda. Originally refers to children's tower-stacking game. After metaphor, many a mickle makes a mickle. "Wonderful Method, Lotus Sutra and Convenience Goods": "Play with children, gather sand and make a tower." From a personal point of view, "small" means that the party always attaches importance to the power of the masses. Many a mickle makes a mickle, but a drop in the bucket. Every little makes a mickle.

Zuo Ke (224500), experimental school of Yongning Road, Binhai County, Jiangsu Province, is a mathematical concept. Concept is a qualitative theory formed by people's cognition of the characteristics of objective things, and it is the conclusion and achievement of integrating, analyzing and processing external information. The teacher should put the mathematical concepts.

Pass it on to students, so that students can establish a mathematical cognitive system in their hearts, build their own cognitive tower on the basis of digesting and absorbing ready-made mathematical concepts, apply these new knowledge theories to practice, master the application law of concepts, and truly realize cognitive transmission and ability transfer.