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知识出发,创设生动有趣的情境,引导学生开展观察、操作、猜想、推理、交流等活动。”放眼现在的数学课堂,学生有合作交流,有自主探究,课堂气氛活跃,充满人文关怀。“创设情境”是数学教学中常用的一种策略,它有利于解决数学的高度抽象性和小学生思维的具体形象性之间的矛盾。 Mathematical curriculum standards that: “Mathematics teaching, we must closely contact with students ’actual life, starting from the students’ life experience and existing knowledge, create vivid and interesting situations, and guide students to observe, operate, guess, reason, exchange and other activities. ”Looking at the current mathematics classroom, students have cooperation and exchange, self-exploration, classroom atmosphere, full of humane care. “Creating situation ” is a commonly used strategy in mathematics teaching, which is conducive to solving the contradiction between the high degree of abstract mathematics and the concrete image of the thinking of primary school students.