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建构主义教学论认为:应当把学习者已有的知识经验作为新知识的生长点,引导学习者从已有的知识经验中,生长出新的知识经验.这正如《义务教育数学课程标准(2011年版)》(以下简称“课标2011年版”)提出的那样:数学教学活动必须建立在学生的认知发展水平和已有的知识经验基础之上.本文结合笔者执教的一节苏科版《义务教育课程标准实验教科书——数学》九年级上册“圆的对称性(1)”一课,阐述如何分析学生已有知识
The constructivist teaching theory believes that the existing knowledge and experience of learners should be taken as the growth point of new knowledge and guide learners to develop new knowledge experiences from existing knowledge and experience. This is similar to the “Compulsory Education Mathematics Curriculum Standard (2011). Year Version) (hereinafter abbreviated as “course standard 2011 edition”) puts forward: mathematics teaching activities must be based on students’ cognitive development level and existing knowledge experience. This article will be combined with the author’s teaching section Suko. Edition of the ”Compulsory Education Curriculum Standards Experimental Textbook - Mathematics“ Grade 9 book ”Circular symmetry (1)" lesson, explains how to analyze students’ existing knowledge