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教学内容:北师大版《义务教育课程标准实验教科书·数学》六年级上册第2页“圆的认识”。教材分析:北师大版教材“圆的认识”这节课中的观察思考一和观察思考二,让学生从生活出发,借助学生已有知识经验进行学习,学习了圆的特性和画法后再回归生活,用圆的知识解释生活中的现象。因此我创设了生活中常见的情境,为学生提供了丰富的观察操作材料,激发学生的主动性,积极探究圆的特征,让学生通过动手操作、主动探索、合作交流,经历“实践——认识——再实践——再认识”的过程,将从现实生活中抽象出的图形探究后再回归生活,从而增强学生的空间观念。
Teaching content: Beijing Normal University edition of “compulsory education curriculum standard experimental textbook mathematics” sixth grade on the second page “round understanding ”. Textbook analysis: Beijing Normal University version of teaching materials “round understanding ” in this class of observation and observation of thinking one, let the students starting from life, with the students have knowledge of learning experience, learning the characteristics of the circle and painting Law and return to life, with a round of knowledge to explain the phenomenon of life. So I created a common situation in life, providing students with a wealth of observation materials to stimulate students’ initiative, and actively explore the characteristics of the circle, so that students through hands-on activities, take the initiative to explore, cooperation and exchange, experience “practice - Understanding - re-practice - re-understanding, ”the process will be abstract from the real life of the figure to explore and then return to life, thereby enhancing the student’s space concept.