最近笔者拜读了《中小学数学》(小学版)2011年第9期吴立刚的《关于数对(4,x)的讨论》一文,深感受益匪浅。对于含有字母的数对究竟表示什么,笔者也赞成要探究明白,但吴老师在文章中得出结论——(4,x)是指第4列所有的学生,可能不妥,值得商榷,有必要再辩一辩。《用数对确定位置》是苏教版教材新增设的内容,属于坐标几何的知识,是学习初中平面直角坐标系的 Recently, I read “primary and secondary mathematics” (primary school) in 2011 ninth issue of Wu Ligang's “on the number of (4, x) of the discussion,” deeply benefited. For the number of letters containing what exactly that, I also agree to explore to understand, but Miss Wu concluded in the article - (4, x) refers to all students in column 4 may be inappropriate, it is open to question, there are Need to debate another debate. “The number of pairs to determine the location” is a new version of the textbook of the Soviet version of education content, belonging to the knowledge of coordinate geometry, learning junior high school rectangular Cartesian coordinate system