“教学情境”是教师根据教学目标和教学内容,有目的地创设的服务于学生学习的一种特殊的教学环境。教学情境的创设,既是教学设计中的一个重要环节,又是小学数学教学中常用的一种教学策略。《数学课程标准》指出:数学教学要紧密联系学生的生活实际,从学生的生活经验和已有的知识出发,创设与学生生活环境、知识背景 “Teaching situation ” is a special teaching environment which is created purposely to serve students’ learning according to teaching objectives and teaching contents. The creation of teaching situation is not only an important link in teaching design, but also a common teaching strategy in primary mathematics teaching. The standard of mathematics curriculum points out that mathematics teaching should be closely linked with the students’ actual life. Starting from the students’ life experience and the existing knowledge, the teaching and learning environment should be established in line with the students’ living environment and knowledge background