论文部分内容阅读
数列求和是数列专题中的一个重点内容,也是高考中的常考内容,而错位相减法是解决数列求和问题的一种典型的方法,同时它也是“差比数列”的求和公式推导,因此它有着广泛的应用。此法虽然适用范围明确,思路清晰,过程的形式固定,但是计算量较大,学生得分率很低,特别在高考试卷中得分低尤为突出。为了解决这样的现状,主要谈了教学中的几点教学拓展,以便于学生能更好地掌握此法。
Summation of series is one of the key topics in the series and is also the most frequently used test in the college entrance examination. Dislocation subtraction is a typical method to solve the problem of series summation, and it is also the summation of Formula derived, so it has a wide range of applications. Although this method has a clear scope of application, a clear idea and a fixed form of process, the calculation is rather large, and the score of students is very low, especially in the college entrance examination papers. In order to solve such a situation, I mainly talked about the teaching of several teaching and development, so that students can better grasp this method.