【教学内容】(分子为1,分母为相邻自然数)分数减法练习及其拓展。【内容所属】人教版五年级下册第五单元《分数的加减法》中第121页第8题。【我的思考】对于这种拓展题,很多教师认为这是分层次练习中优等生掌握的,而其他潜能生只能是望尘莫及。可我认为优等生是培养出来的,不是叫出来的,只要创设一个人人乐于探究的数学学习环境,人人皆是优等生!为此,我创设性地使用教材,给枯燥的《分数的加减法》教学 【Content】 (numerator 1, denominator for the adjacent natural number) fractional subtraction practice and its expansion. 【Content belongs】 PEP fifth grade Volume fifth unit “Addition and subtraction of scores” in the first 121 page 8 questions. [My thinking] For this kind of development questions, many teachers think it is mastered by the top students in different levels of practice, while other potential students can only fail to catch up. But I think the top students are trained, not called out, as long as the creation of a mathematical learning environment that everyone is willing to explore, everyone is a top student! To this end, I creatively use textbooks to boring “score plus Subtraction ”teaching