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解直角三角形作为初中数学中的一个重要内容,在代数和几何中有着广泛的应用.教学中发现,许多学生对这类问题的理解存在困难,解题时找不到着手点.本文通过对河南省近十年数学中考题的研究,用建模思想探究这类问题的解决模型.一、模型抽象收集近十年(2007-2016)河南省中考数学题,对其中的压轴题(本文指用解直角三角形知识解决的综合题)进行分析,我们发现,大多年份都有对该知识点的考查,2011年至
As an important content of mathematics in junior high school, solution of right-angled triangle is widely used in algebra and geometry.It is found in teaching that many students find it difficult to understand this kind of problem and can not find a solution when they solve the problem.Through the study of Henan In recent years, the province of mathematics test questions in the study, with modeling ideas to explore such problems to solve the model.A model abstract collection of nearly a decade (2007-2016) Henan province math test questions, the finale of which (this article refers to Solution of right triangle knowledge to solve the comprehensive problem) analysis, we found that most of the year there is a test of the knowledge point, 2011 to