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人教版《义务教育教科书·数学》二年级下册已出版两年。本册教材包括9个单元和1个“小小设计师”的综合实践活动,有的单元变化大,有的单元变化小。教材的编写特点及教学建议主要是:抓住认数的核心概念理解数概念,注重数感的培养;重视运算意义和算理、算法的理解;丰富解决问题的内涵,落实“四能”的培养;降低相应内容难度,丰富基本活动经验;突出过程性目标的实现。
PEP version of “compulsory education textbook · Mathematics” second grade has been published for two years. This book consists of nine units and a small designer’s comprehensive practice, and some units vary greatly, and some units change little. The compilation of teaching materials and teaching suggestions are mainly: to grasp the core concepts of recognition of the number of concepts, pay attention to the cultivation of number sense; emphasis on the meaning of arithmetic and arithmetic, algorithm understanding; rich content to solve the problem, the implementation of "Training; reduce the difficulty of the corresponding content, enrich the experience of basic activities; highlight the realization of the process goal.