目前,小学数学课中存在一个普遍问题,即教师讲得多,学生练得少,学生没有课堂练习过程。课堂练习逐渐转移到课外,不仅剥夺了学生的课外活动时间,而且导致教师不能及时掌握学生的认知困难。此外,课堂练习一旦变成课外练习,则趋向于重复和机械,过重的作业负担既影响了学生健康,又影响了学习效果。其结果是学生忙于“赶”作业,哪里还有思维发展。因此,数学教学首先 At present, there is a common problem in primary school mathematics class, that is, teachers speak more, students practice less, and students do not have the class practice. The gradual shift of classroom practice to extracurricular activities not only deprived students of extracurricular activities but also prevented teachers from grasping students’ cognitive difficulties in a timely manner. In addition, once classroom exercises become extracurricular exercises, they tend to be repetitive and mechanical. Excessive workloads not only affect the health of students, but also affect the learning outcomes. The result is that students are busy with “hurry” homework and where thinking is still developing. Therefore, mathematics teaching first