我们的社会已经跨入了信息化高速公路,需要大量能处理信息的人,能解决问题的人,因此我们的数学教学也要适应这个变化的社会,不仅要让学生会解决一些生活中常见的数学问题,更要力图让学生在遇到不同的问题时,能迅速调用甚至创造合适的策略予以解决。本文以苏教版五年级上册“——列举”策略的教学为例,谈几点看法。一、探索:自主建构策略[片断设计]1.教师出示例题:王大叔用22根1米长的木条围一个长方形花圃,怎样围面积最大?然后组织并点拨 Our society has entered the information highway, requiring a large number of people who can handle information and solve problems, so our mathematics teaching should adapt to this changing society, not only to allow students to solve some of the common math in life Problems, but also to try to allow students in the face of different problems, can quickly call or even create a suitable strategy to be resolved. In this paper, the fifth edition of the Soviet version of the book “- enumeration ” strategy teaching, for example. First, to explore: self-construction strategy [piece design] 1 teacher to produce examples: Wang Taishou with 22 1-meter-long wooden fence around a rectangular flower garden, how to enclose the largest area? Then organize and dial