如何促进更快、更大范围地提高小学数学教学质量,是当前国内小学数学研究的重大课题。我们在龙口市实验小学采访时,惊喜地发现:他们在这一课题的探索中,以单元教材为整体,对构建单元教学体系,取得了突破性进展。 数学学科特点是系统性强,知识的链条前后衔接、环环紧扣,并总是按照“发生——发展——延伸”的规律,自然地构成每一单元整体;学生对每一单元的学习,由知识的“发生点”起步,以旧知为依托,通过“迁移”、“转化”等思维方式去驾驭新知。据此,他们确定了 How to promote the quality of primary school mathematics teaching faster and more extensively is a major issue in the current study of mathematics in primary schools. When we interviewed at Longkou Experimental Primary School, we were pleasantly surprised to find out that they were making breakthroughs in constructing the unit teaching system based on unit textbooks in the exploration of this topic. Mathematical characteristics of the system is strong, the chain of knowledge before and after the convergence, closely linked to the ring, and always in accordance with the “occurrence - development - extension” of the law, the natural structure of each unit as a whole; students learn each unit , Starting from the “point of occurrence” of knowledge and relying on the old knowledge to control the new knowledge through such ways of thinking as “relocating” and “transforming”. As a result, they have decided