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课堂教学是预设与生成的同构共建,它们是融为一体的。在教学过程中,我们应当为生成性教学寻求灵活的预设,让预设去促进有效的生成。教学预设就要为促进数学课堂有
Classroom teaching is a co-construction of presupposition and formation, they are integrated. In the teaching process, we should seek a flexible preconception for generative teaching and let the presupposition promote the effective generation. Teaching presupposes that there is to promote mathematics classroom