中央教育科学研究所借鉴国外中小学数学现代化运动的经验,在我国原有教材的基础上编写了一套小学数学实验教材。该教材以算术、代数、几何为经线,概念、计算、应用题为纬线,形成了一个多层次、多方面的数学知识新体系,并注意把这些数学知识的结构与学生的认识能力有机结合起来。在教材内容安排上,基本概念螺旋上升,基本原理与数量关系突出;应用题不分类型,易混互逆练习交错出现,不让学生死记硬背,以激发他们独立思考,积极 The Central Institute of Educational Sciences draws on the experience of the modern mathematics movement in primary and secondary schools in foreign countries and has compiled a set of elementary mathematics experimental teaching materials based on the original teaching materials in our country. The textbook uses mathematics, algebra and geometry as warp threads, concepts, calculations, and application questions as wefts to form a new multi-level and multi-dimensional system of mathematical knowledge, and to combine the structure of these mathematical knowledge with the students' cognitive ability . The content of the textbook, the basic concept of a spiral rise, the basic principles and the number of prominent; application questions regardless of type, easy to mix and reciprocal practice staggered, students are not rote, to stimulate their independent thinking, positive