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在数学学习中,科学地减少学生练习题量,挖掘“从一道练习作业中取得最大可能的效果”能从本源上起到减负增效作用。本文通过“主”与“客”互换、“偷梁换柱”、“无中生有”、巧摆“空城”四种策略改编课后练习,挖掘教材习题的潜在因素,把单一、枯燥的习题变成学生自主体验的一片广阔和自由的空间,让学生在练习过程中获得体验,巩固知识,拓展知识,使习题练习少而精,课堂教学节奏明快有序,教学内容突出有效。
In mathematics learning, scientifically reduce the amount of student practice, mining “from a practice operation to obtain the maximum possible effect ” can play a source of negative effects. This article through the “master” and “guest” interchangeable, “perpetrating ”, “” without “, ” empty city "four strategies adapted after class exercises, The single, boring exercise into a broad and free space for students to experience autonomy, so that students gain experience in the practice process, consolidate knowledge, expand knowledge, exercise exercises less but refined, classroom teaching fast-paced and orderly, teaching content Outstanding effective.