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在高中数学中,待定系数法是重要的解题方法之一,也是方程与函数思想的一个重要载体.因此,在高中数学教学中,教师应培养学生对这一方法的运用意识,引导学生正确认识待定系数法,把握其解题步骤,学会灵活运用,从而提高解题能力.一、高中数学待定系数法待定系数法就是将具备某一明确形式的一些数学问题,引入一些待定未知数,使其变为方程组,然后求解方程组,求出待定系数.在运用待定系数法进行解题时,应把握其关键所在:根据已知条件,列出正确的方程或者等式.而判断某一数学问题能否借助待定系数法进行求解,则需观察这一问题是不是具备某一明确的数学表达式,若具备,则
In high school mathematics, the law of undetermined coefficient is one of the important problem-solving methods and also an important carrier of the thought of equations and functions.Therefore, in the teaching of high school mathematics, teachers should cultivate students’ awareness of using this method and guide the students to correct Understand the coefficient method to be determined, grasp the steps to solve their problems, learn to use flexibly, thereby enhancing the ability to solve problems.A, high school mathematics to be determined coefficient method To be determined coefficient method is to have some definite form of mathematical problems, the introduction of some unknown to be determined Become equations, and then solve the system of equations to find the coefficient to be determined in the use of undetermined coefficient method to solve the problem, we should hold the key: According to known conditions, lists the correct equation or equation. And to determine a mathematical If the problem can be solved by the method of undetermined coefficient, it is necessary to observe if this problem possesses a certain definite mathematical expression. If so,