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教学内容苏教版四年级上册第30页(乘加、乘减混合运算)。教学过程一、谈话引出情境,呈现知识起点师:你们喜欢购物吗?这是
Teaching content Sujiao version of the fourth grade on the first page 30 (multiply, multiply and subtract mixed operations). Teaching process First, the conversation leads to situations, showing the starting point of knowledge division: Do you like shopping? This is