人教版数学五年级上册安排了《简易方程》的教学,新教材在内容的编排上与以前的教材有着较大的差别,老师们教下来都有一个困惑:形如a-x=b和a÷x=b的简易方程真的能回避吗?一、纵观教材,关注思维,两个“回避”看问题教材60页例3:“今天上午8时,洪泽湖蒋坝水位达14.14m,超过警戒 PEP fifth grade on the book arranged a “simple equation” of teaching, the new textbook in the content of the layout of the previous textbooks have a greater difference, the teachers teach have a confusion: shape such as ax = b and a ÷ x = b simple equation can really avoid it? First, the whole textbook, concerned about thinking, two “avoidance” to see the problem Example 3: "At 8 o’clock this morning, Hongze Lake Jiang dam water level of 14.14m, Over alert