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应用型问题是以生产、生活中的实际问题为背景(background)编制的,需要经过抽象(abstract)来建立数学模型(方程模型、不等式模型、函数模型等)加以解决的一类问题.这类“化归—建模—求解”型的问题有利于考查同学们分析问题、解决问题的能力.近几年来,全国各地的中考数学试卷对应用型问题的考查力度逐年有所增加,应当引起同学们足够的重视.解决实际问题的关键在于把实际问题抽象成数学问题.
Application-type problems are based on the background of actual problems in production and life. They need to be abstracted to establish a mathematical model (equation model, inequality model, function model, etc.) to solve a class of problems. The “Return to Modeling-Solving” type problem is helpful to examine the ability of students to analyze problems and solve problems. In recent years, examination tests of applied mathematics problems in the examination papers for mathematics across the country have increased year by year, and students should be encouraged to learn. We pay enough attention. The key to solving practical problems lies in abstracting practical problems into mathematical problems.