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一、几个相关问题1.教学内容分析本节课是苏教版选修1-2第一课时内容,也就是复数的入门,复数对于学生来说是一类新数,也是中学课程里数的概念的最后一次扩展.虚数对于学生来说很陌生,生活中很少应用,不太容易理解,同时,关于这部分内容的考题只涉及复数的相关概念,但作为新授课,其落脚点不能仅定位于此,而应与本节课的主题“数系的扩充”相匹配,即通过本节课的学习,要让学生知道以前的数集为什
First, a few related issues 1. Analysis of teaching content This lesson is the second edition of the first edition of the Sujiao version elective 1-2, which is the entry of plurals, the plural is a new type of number for students, but also the number of high school courses The last expansion of the concept. The imaginary number is unfamiliar to students, rarely used in life, not easy to understand, at the same time, the questions on this part of the content involves only the plural related concepts, but as a new lecture, its foothold can not only It should be located here, but should match the theme of this lesson “Expansion of a few systems ”, that is, through this lesson, students should be informed about the previous number set