众所周知,数列教学一直是高中数学复习教学的重点,其与不等式等内容相结合又是高考中的难点。数列概念比较容易理解,但是在运用环节难度较大,数列又是比较容易创新的章节,利用等差、等比这两个基本数列创造的新型数列在考查中往往能难住不少学生。数列求和和求通项是数列教学核心,但是学生整体思想的缺失和基本运算的不足往往导致对数列核心问题手足无措。纵观高考命题,其中的数列问题都是以两种基本数列为模型进行建构,进而利用转化划归思想进行综合数列问题的求解。因 As we all know, the number of teaching has always been the focus of high school mathematics review teaching, which is combined with the inequality and other content is the difficulty of college entrance examination. The concepts of numbers are easy to understand, but the columns are more difficult to use and the numbers are easier to innovate. With the new series created by two basic series such as equal difference, it is often difficult to live with many students. The summation of sequence and the demand of completion are the core of sequence teaching. However, the lack of the overall thought of the students and the lack of basic operation often result in the loss of the core of the sequence. Throughout the college entrance examination proposition, the series of questions are based on two basic series as a model to construct, and then use the transformation of the thought of thinking to solve the comprehensive series of questions. because