小数的简单加减是小学数学教学中的一个难点和重点。教师应创设一些情境,设计合理的教学导入法;重视教学与生活实际的相互联系;互动学习,强化学生学习效果,激活学生的相关生活经验和相关知识基础促进学习的正迁移,使学生能根据自己的生活经验提出问题并解决问题,在学会的同时,形成会学的能力,逐步培养和提高学生的数学学习能力。 A simple addition and subtraction decimal primary mathematics teaching a difficult and important point. Teachers should create some contexts and design a reasonable teaching method; pay attention to the actual connection between teaching and life; interactive learning, strengthen students ’learning effects, activate students’ relevant life experiences and relevant knowledge base to promote positive transfer of learning, Their own life experience to ask questions and solve problems, while learning to form the ability to learn, and gradually develop and improve students’ ability to learn mathematics.