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《数学课程标准》明确指出“有效的数学学习活动不能单纯依靠模仿和记忆,动手实践、自主探索与合作交流是学生学习数学的重要方式。”在教学中适当让学生进行动手操作,不仅能有效解决数学知识的抽象性与学生思维形象性的矛盾,而且对激发学生内在学习动机、培养学生合作探究意识和数学思维的发展有积极的意义。
“Mathematics Curriculum Standards” clearly states that “effective mathematical learning activities can not rely solely on imitation and memory, hands-on practice, independent exploration and cooperation and exchange is an important way for students to learn mathematics.” "Appropriate for students in teaching hands-on operation, not only Which can effectively solve the contradiction between the abstraction of mathematical knowledge and the image thinking of students, and has a positive meaning in stimulating students ’intrinsic motivation for learning, developing students’ cooperative exploration awareness and developing mathematical thinking.