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课例导语新课标明确提出:“学生的数学学习活动不应只限于接受、记忆、模仿和练习,还应倡导自主探索、动手实践、合作交流、阅读自学等学习数学的方式.通过学生的主动参与、自主实践和思考,独立地发现、分析、解决问题,培养探索精神和创新能力”.本节课利用“一导二环三段”数学课堂教学模式.“一导”即一个导学案,“二环”即课堂推进设两环:展示交流和拓展提高,“三段”即教学全程以一
The new course standard of class lexicon clearly states: “The students’ mathematics learning activities should not only be limited to accepting, remembering, imitating and practicing, but also advocating self-exploration, hands-on practice, cooperation and exchange and reading self-study etc. Through the students Take the initiative to participate, autonomously practice and think, independently discover, analyze and solve problems and cultivate the spirit of exploration and innovation. ”This lesson leverages the guideline of“ one guide, two rings and three sections of mathematics classroom teaching mode. ” “That is, a guide case, ” second ring “that the classroom set up two rings: to show exchange and expansion, ” three sections "that is,