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【教学内容】苏教版四年级上册第56～58页。【教学目标】1.使学生经历探索加法运算律的过程,理解并掌握加法的交换律和结合律,并初步感知加法运算律的价值,发展应用意识。2.使学生在学习用符号、字母表示自己发现的运算律的过程中,初步发展符号感,初步培养归纳、推理的能力,逐步提高抽象思维的水平。3.使学生在数学活动中获得成功的体验,进一步增强对数学学习的兴趣和信心,初步形成探究问题的意识和习惯。
Teaching content】 【Sujiao version of the fourth grade on the first 56 ~ 58 pages. 【Teaching Objectives】 1. To enable students to explore the process of learning the law of addition, understanding and mastering the law of exchange and combination of addition, and the initial perception of the value of the law of addition and development of application awareness. 2. Enable students to use symbols and letters to express their own operational law, initially develop the sense of symbol, initially develop the ability of induction and reasoning, and gradually raise the level of abstract thinking. 3. To enable students to experience success in mathematics activities to further enhance the interest and confidence in mathematics learning, the initial formation of awareness and habits of inquiry.