本文拟结合统编教材初中代数第三册§11.5节内容,浅谈韦达定理的教学,仅供参考。一、关于定理的教学韦达定理,学生很易接受。开始时,可叫学生解答若干道一元二次方程,并把两根的和及积分别求出来,再比较它们与系数间的关系,从而启发学生自己得出每一个结论,进而导出韦达定理。然后说明定理用于二次 This article is to be combined with the contents of Section § 11.5 of the third edition of the junior middle school algebra of the unified textbook. The teaching of Vedic theorem is for reference only. First, on the teaching of theorem Vedic theorem, students are very easy to accept. At the beginning, the students can be asked to answer a number of one-way quadratic equations, and the sum and product of the two roots can be obtained separately, and then the relationship between them and the coefficients can be compared. Thus, the students can be inspired to draw each conclusion and derive the Weida theorem. . Then explain the theorem for quadratic