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《全日制义务教育数学课程标准》指出:“学生的数学学习内容应当是现实的、有意义的、富有挑战性的。”“数学教学活动必须建立在学生的已有的知识经验基础之上。”这两句话明确指出了数学课堂教学内容的选择要关注学生生活经验,体现数学的“价值”和“必需”;关注学生知识经验,找准新知生长的固着点;关注学生的数学活动经验,引领学生经历“数学化”过程。
The full-time compulsory education mathematics curriculum standard states: “Students ’mathematics learning content should be realistic, meaningful and challenging.” Mathematics teaching activities must be based on the students’ existing basis of knowledge and experience . “These two sentences clearly pointed out that the choice of teaching content in mathematics should pay attention to the students ’life experience, embody the” value “and” necessary “of mathematics; pay attention to the students’ knowledge and experience and fix the growth of new knowledge Point; focus on students’ experience in mathematical activities, leading students to experience ”mathematical " process.