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模型思想是2011年版义务数学课标新增加的核心概念,是十大核心概念之一。教学中我善待学生错误,善于去掉非本质的东西,用数学语言、数学符号或数学图形表述出数学模型。例如:在教学“6、7减几的减法”时,我们可以巧妙地建构“已知总数和一部分,求另一部分?总数-一部分=另一部分”这一模型,架起数学基础知识与数学应用之间的桥梁,使学生体会到数学与大自然以及社会的联系。
The model idea is a newly added core concept of the compulsory math curriculum standard in 2011 and is one of the ten core concepts. In teaching, I treat student mistakes, good at removing non-essential things, using mathematical language, mathematical symbols or mathematical graphs to express the mathematical model. For example, when teaching “Subtracting 6, Subtracting A Few,” we can skillfully construct a mathematical basis for “knowing the total sum and part, finding the other part, totaling - part = another part.” The bridge between knowledge and math applications enables students to appreciate the connection between math and nature and society.