1.在数学情境中,培养学生思维。在复杂的问题情境中,教师要培养学生提炼数学问题的能力,构建数学模型,训练学生的思维。如:教“时分的认识”一课时,我先出示钟表图,请学生仔细观察钟面,说说自己想知道些什么?学生提出如下问题:“钟面上有几个大格,有几个小格?有几根指针?为什么一根针长,一根针短?时针走得快还是分针走得快?时针走一大格是多长时间?分针走一小格是多长时间?分针走一圈时针走 1. Develop students’ thinking in mathematical situations. In complex problem situations, teachers should cultivate students ’ability to refine mathematical problems, construct mathematical models and train students’ thinking. Such as: teaching ”Time Recognition “ class, I first show the clock chart, students are asked to carefully observe the clock face, to talk about what they want to know? Students raised the following questions: ” How many pointers? Why a needle length, a needle short? Clockwise go faster or minute hand go faster? Clock walk a large grid is how long? Time? Minute hand to go around the hour hand