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在教学过程中,教师要善于利用课本习题设置疑问,灵活变通,加以拓展,培养学生探究创新能力．现就课本上的一道习题谈谈笔者的尝试．题目：求(2-1)(2+1)(2~2+1)(2~4+1)…(2~(32)+1)+1的个位数字．(北师大版七年级《数学》下册57页第6题)
In the teaching process, teachers should be good at using textbook exercises to set questions, be flexible and expand, and develop students’ ability to explore innovation. Let’s talk about the author’s attempt on an exercise book. Title: Find the ones digit of (2-1)(2+1)(2~2+1)(2~4+1)...(2~(32)+1)+1. (Beijing Normal University version of “Mathematics” seventh volume 57 page 6)