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我想请大家和我一起进行一个想象,把孩子们的概念系统想象成一个圈儿,他的前概念是个圈儿,他将要学习到的科学概念也是个圈儿。每个学生进课堂之前,他
I would like to invite everyone to create an imagination with me. Imagine the children’s conceptual system as a circle. His preconception is a circle, and the scientific concept that he will learn is also a circle. Every student enters the class before him