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《数学课程标准》(201 1版)中明确指出:“教师应以学生的认知发展水平和已有的经验为基础,使学生理解和掌握基本的数学知识与技能,体会运用数学思想和方法,获得基本的数学活动经验。”教师要从处理好操作活动和思维活动;直接经验和替代经验;经验积累和经验应用三方面来帮助学生积累数学活动经验。
The Standard for Mathematical Curriculum (201 1 Edition) clearly states: “Teachers should make students understand and master basic mathematical knowledge and skills based on the level of cognitive development and existing experience of students, understand how to use mathematical thinking and Method to gain basic experience in math activities. ”" Teachers should help students accumulate experience in math activities from three aspects: dealing with operational activities and thinking activities; direct experience and alternative experiences; and using experience and experience.