数学是一门应用性学科,数学教学活动必须建立在学生的认知发展水平和已有的经验基础上。只有在活动中,当数学与儿童的现实生活密切结合时,数学才是活的、有生命的,学生才会产生学习数学的兴趣,才能在“问题解决”的情境中学好数学。因此,教师要联系实际生活,努力拓展学习的空间 Mathematics is an applied discipline, mathematics teaching activities must be based on the level of cognitive development of students and the existing experience. Only in activities, when mathematics and children’s real life are closely integrated, is mathematics alive and alive, students will have the interest in learning mathematics, in the “problem-solving” situation to learn mathematics. Therefore, teachers should contact the real life, and strive to expand the space for learning