新课程标准指出,在小学数学课堂教学中,学生学习到的内容应该是现实的且有意义的,同时,这些内容要能够培养学生的观察、思考、推理等多方面的能力。随着新课程改革的不断深入,对小学数学教师提出了更高的要求,教师要从过去简单的教材执行者,变为对教材进行开发的研究者与创新者。教师要能够把教材看作是一个范例,要能够认识到,虽然教材具有普遍的适用性,但是对于不同地区、不同学校的不同学生,它存在不可避免地局限性。这就需要小学数学教师能够根据本校的 The new curriculum standard points out that in the elementary mathematics classroom teaching, students should learn the content is realistic and meaningful, at the same time, these contents should be able to cultivate students’ abilities of observation, thinking and reasoning. With the continuous deepening of the new curriculum reform, teachers of elementary mathematics have put forward higher requirements. Teachers should change from a simple textbook implementer to a researcher and an innovator who develop textbooks. Teachers should be able to treat textbooks as an example of how to recognize that despite the universal applicability of textbooks, there are inevitable limitations for different students in different regions and schools. This requires primary school mathematics teachers can according to our school