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一、教学实况教师出示三个算式:5400÷900=6;540÷90=6;54÷9=6.问:“三个算式商都是多少?这三个算式相等吗?”生:三个算式商都是6,这三个算式相等.(师
First, the teaching of real-time teachers to produce three formulas: 5400 ÷ 900 = 6; 540 ÷ 90 = 6; 54 ÷ 9 = 6. Q: "What are the three formulas are the same? The three operators are all 6, these three equal. (Division