本文是在山阴县宏志辅导班暑假社会实践期间对必修5数学课本中《数列》一章

This article is Hongzhi remedial classes during the summer social practice Sanin County on the "front n item and geometric series of" instructional design fragment of compulsory mathematics textbooks 5 "columns" in the chapter by thoughts of "equations, geometric Defines the number of columns, teaching content subtraction dislocation "of teaching research and analysis, and then sophomore year teaching practice, teachers and students in the classroom through interactive group discussions to achieve better teaching results. After-school questionnaire survey way to collect student feedback classroom, after school reflection and summary.

本文是在山阴县宏志辅导班暑假社会实践期间对必修5数学课本中《数列》一章中“等比数列的前n项和”进行的教学设计片段.通过对“方程的思想，等比数列的定义，错位相减法”的教学内容进行教学研究和分析,然后对高二年级进行教学实践,在课堂上通过师生互动、小组讨论等来达到更好的教学效果.课后采用问卷调查的方式来收集学生课堂反馈信息,进行课后反思与总结.

This article is a teaching design fragment of "the first N-term sum of the equal ratio series" in the chapter of "the number series" in the compulsory 5 mathematics textbook during the summer social practice of the Hongzhi tutoring class in Shanyin county. Through the teaching research and analysis of "the thought of equation, the definition of the equal ratio series, the dislocation subtraction", then the teaching practice is carried out in the second grade of senior high school, In the classroom, through the interaction between teachers and students, group discussion and so on, to achieve better teaching effect. After class, questionnaire survey is used to collect the feedback information of students in the classroom, to reflect and summarize after class