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教学内容北师大版小学数学下册第85~87页。教学目标1.知识与技能结合具体情境,理解用字母表示数的意义,学会用字母表示数的方法,并能用它表示简单的数量关系、运算定律、计算公式。通过发现、对比、体验、尝试等方式,探索用字母表示数的过程,发展学生的抽象概括能力。2.过程与方法在探索用字母表示数的过程中,感受到符号的简洁美和符号化思想。3.情感、态度与价值观在探索过程中,激发学生学习数学的兴趣和积极主动的探索
Teaching content Beijing Normal University version of primary school mathematics volumes 85 ~ 87. Teaching Objectives 1. Knowledge and skills combined with specific situations, understand the meaning of the number of letters, learn to use the number of alphanumeric methods, and can use it to represent a simple quantitative relationship, the law of operations, formula. By discovering, comparing, experiencing, trying out and so on, we explore the process of using alphanumeric expressions to develop the abstract abilities of students. 2. Processes and Methods In exploring the process of using alphanumeric characters, we can feel the conciseness and symbolism of symbols. 3 emotions, attitudes and values in the exploration process, to stimulate students interest in learning mathematics and proactive exploration