在以往的小学数学教学中,我们经常看到教师过分地依赖教材,把教材作为唯一的课程资源。教师的备课与上课完全以教材和参考书为主,不敢越雷池半步。教学离不开教材,但过分依赖教材,把教材作为唯一的教学资源,这又会使教学内容单调,教学方式单一,满足不了学生的需求,同时也限制了教师和学生的创造性。但在课改之后,我们又看到另外一种截然不同的现象,整堂课几乎不打开课本,完 In the past, primary school mathematics teaching, we often see teachers rely too much on teaching materials, teaching materials as the only curriculum resources. Teachers prepare lessons and classes entirely to textbooks and reference books based, do not dare to move more than half a thunder. Teaching is inseparable from teaching materials, but excessive reliance on teaching materials, the teaching materials as the only teaching resources, which in turn makes the teaching content monotonous, teaching a single, can not meet the needs of students, but also limits the creativity of teachers and students. However, after the curriculum reform, we have seen another completely different phenomenon, the whole class almost does not open the textbook, finished