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中学数学第二册第六章整式中讲授的乘法公式是因式分解、分式运算、解方程等知识的基础,在数学中有着广泛的应用,所以它不仅是这章的重点,也是中学数学中重要的基础知识之一。学生学习乘法公式的过程大体可分为透彻的理解,牢固的记忆,正确、熟练、灵活的运用这样三个阶段。在这三个不同的阶段,学生认识上有着不同的规律。只有把握了学生认识上的规律,才能取得教学上的主动权。一、如何透彻理解公式怎样解决学生在使用乘法公式时生搬硬套的问题呢?首先应当从如何导出乘法公式
The multiplication formula taught in the sixth chapter of middle school mathematics second book is the basis of factorization, fractional operation, solution of equations and other knowledge. It has a wide range of applications in mathematics, so it is not only the focus of this chapter, but also the middle school mathematics. One of the important basic knowledge. The process of students learning multiplication formula can be roughly divided into thorough understanding, solid memory, correct, skilled and flexible use of these three stages. In these three different stages, students have different rules of understanding. Only by grasping the rules of students’ understanding can we gain the initiative in teaching. First, how do you thoroughly understand how the formula solves students’ problems when using multiplication formulas? First, how to derive multiplication formulas?