一、教学背景本节课是在我校的青年教师赛课中开设的,所教班级为高一(12)班——美术班,学生的数学基础相对文化班略显薄弱,在教学过程中,主要注重以基础知识为主,能力提升为辅.二、教材分析本节课的教学目标:(1)根据正弦函数的变换得到函数y=Asin(ωx+φ)的解析式;(2)能够根据图象所给信息,求出函数y=Asin(ωx+φ)的解析式;(3)进一步体会数形 First, the teaching background This class is in our school young teachers race class opened, the class taught by the high one (12) classes - art classes, students' maths foundation relatively weak cultural class, in the teaching process , Mainly focusing on the basic knowledge, supplemented by the ability to improve.Second, textbook analysis The teaching objectives of this lesson: (1) According to the transformation of the sine function y = Asin (ωx + φ) analytic formula; (2) Can get the analytic formula of the function y = Asin (ωx + φ) according to the information given by the image; (3) further understand the shape