数列是高中数学的重点和难点之一,是各个省市高考命题的重要内容。虽然教材上数列的基本公式较少,但其变式的灵活性、数列的抽象性和限制条件的多样性很容易导致学生在解答数列试题时出现错误。在多年教学实践的基础上,总结了解答高中数列试题的易错点,如下所述。 The sequence is one of the most important and difficult points in high school mathematics. It is an important part of college entrance examination propositions in various provinces and cities. Although there are fewer basic formulas for series in textbooks, the flexibility of variations, the abstraction of sequences, and the variety of constraints make it easy for students to make mistakes in answering a series of questions. On the basis of many years of teaching practice, it summarizes the error-prone points of answering high school numerical questions as follows.