关联图形拨云见日r——2021年宁波市数学中考第16题的解法与探究

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文章针对一道中考填空压轴题,从不同视角对基本图形进行关联,从而形成多种解法,通过问题的6个思考更深层次地把握问题的本质.面对较难的综合性几何问题时,要让学生从整体、联系的角度分解图形、关联图形、挖掘隐含信息,提高他们的识图能力,解后全面回顾与反思,发展他们的核心素养.
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概念教学课是一种重要的数学教学课型,抓好数学概念的教学,是提高数学教学质量的关键.让抽象的数学概念内化于学生的概念认知结构,离不开教师对学生、学材和学法的研究.