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拜读了《中小学数学》(小学版)2015第1-2期苏莹的《解稍复杂方程的疑惑和感悟》,也想谈谈自己教学和对某些知识点处理时的思考。一、对学生遇到问题的思考2013版苏教版五年级数学下册第一单元方程共安排了10个例题、3个练习和整理与练习,涉及“认识方程”、“等式的性质与解方程”、“列方程解决稍复杂的实际问题”这几部分内容。在教学例7时,教材中出现了根据两种不同的数量之间的相等关系列出的两种不同的方程并安排了示范解答(如下):
Read elementary and middle school mathematics primary and secondary schools 2015 (primary school edition) 2015 1-2 Yi Su’s “solution slightly complex equation doubts and insights”, also want to talk about their own teaching and processing of some knowledge point of thinking. First, the students encountered problems thinking 2013 version of the fifth grade mathematics volumes under the first unit equation arranged a total of 10 cases, three exercises and finishing and practice, involving “cognitive equation ”, “equation The nature and solution equation ”, “ column equation to solve the slightly complex practical problems ”these parts. In teaching example 7, two different equations based on an equal relationship between two different numbers appeared in the textbook and an exemplary solution was presented (below):