【摘 要】
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本文介绍三点共线向量式定理和向量等和线定理的配合运用,以高考试题为例快速解决一类向量问题的方法.向量等和线定理在某些文献里也被称作向量等高线定理,这种命名可能类似
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本文介绍三点共线向量式定理和向量等和线定理的配合运用,以高考试题为例快速解决一类向量问题的方法.向量等和线定理在某些文献里也被称作向量等高线定理,这种命名可能类似于地理学科的“等高线”作用机理.近些年来,三点共线向量式定理和向量等和线定理配合使用在数学教育发达的江浙皖湘川等省份比较时兴,由于利用它们可以比较容易地处理向量中某些较难问题,这两个定理配合使用可算得上是“秒杀”这类问题一种的“利器”了.在大力提倡培养数学核心素养的今天,我们更应该教会学生,充分理解数学概念的准确性,把握数学思想方法的本质性,不断总结和发现解题规律,而不是一味地为应试而拼命地去狂刷试题.
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