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1引言美国著名教育家杜威强调从实践中学,并把教学过程看成是“做的过程”.当今社会,随着知识增长和知识更新的速度越来越快,教育改革越来越重视培养学生良好的学习方法和勇于探索的科学精神[1][2].《普通高中数学课程标准(实验)》把“倡导积极主动、勇于探索的学习方式”作为新课程的理念之一,并提出“应尽量给学生提供一定的实践活动机会”.全美数学教师理事会推出的《学校数学教学的原则和标准》(NCTM,
1 Introduction The famous American educator Dewey emphasizes from the practice of learning, and the teaching process as “the process of doing.” In today’s society, as knowledge growth and knowledge update faster and faster, education reform more and more attention Develop students’ good learning methods and brave exploration of the spirit of science [1] [2]. “Ordinary high school mathematics curriculum standards (experiment)” to “advocate proactive and courage to explore the learning ” as one of the ideas of the new curriculum , And suggested that “students should be given some practical activities as far as possible.” The National Mathematics Teachers Council launched the “principles and standards of school mathematics teaching” (NCTM,