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教学内容:苏教版《义务教育教科书·数学》四年级上册第30-31页。教学目标:1.结合具体情境探索并发现简单周期现象中事物的排列规律,能根据规律确定某个序号代表的是什么,体会符号的作用与价值。2.经历自主探索、合作交流的过程,体会画图、计算等解决问题的不同策略,积累数学活动经验,感悟基本数学思想,感受数学思考的条理性。3.在探索与发现规律的过程中进一步培养学生的符号意识,并体会数学与生活的联系。
Teaching content: The Soviet version of “compulsory education textbook · Mathematics” fourth grade on the first 30-31 pages. Teaching objectives: 1. Combination of specific situations to explore and find the phenomenon of simple periodic arrangement of things in the law, according to the law to determine what is represented by a serial number, to understand the role and value of symbols. Experience the process of independent exploration, cooperation and exchange, understand the drawing, calculation and other strategies to solve the problem, the accumulation of experience in mathematical activities, sentiment, basic mathematical thinking, feel mathematical reasoning. In the process of exploring and discovering laws, we should further cultivate students’ symbolic awareness and understand the connection between mathematics and life.