实际教学中,有些老师往往乐意追求在低等级水平技能(如简单的计算技能)上“高频”练习,却使得学生在高等级水平技能(如数感意识、数学思想)上“低频”发展,这样的弊端引发了我的思考。运算能力的高低,直接影响数学学习的能力。因此在教学实践中,我尝试着从改造教材习题入手,希望能在培养学生数感意识、数学思想等方面起到四两拨千斤的效果。一、加一加在教材习题的基础上加点料,帮助学生将零散的、单一的知识串联起来形成片。这样的习题改造,让学生“见山不 In actual teaching, some teachers are often willing to pursue ”high frequency“ exercises on low-level skills (such as simple calculation skills), but enable students to practice high-level skills (such as sense of number, mathematical thinking) Low frequency ”development, such drawbacks triggered my thinking. The level of computing power, a direct impact on the ability of mathematical learning. Therefore, in teaching practice, I try to start with the reform of textbooks exercises, hoping to cultivate students sense of number of senses, mathematical thinking and other aspects play a defensive effect. First, plus one plus textbook exercises based on the addition of materials to help students will be scattered, a single piece of knowledge in series to form a film. This exercise reform, so that students "see the mountains do not