优秀教师通常能将复杂的内容教得简单易懂,教学效果很好。笔者认为,要成为这样的教师,首先应树立正确的教材观,充分发挥能动性。下面,笔者结合教学案例《数学4》(必修)第一章“1.3.3函数y=Asin(ωx+φ)的图像”谈谈个人的一些想法,以求教于同行。1如何定位教材1.1教材为学生改进学习方式创设平台1.1.1提供学习的基本材料 Excellent teachers can usually teach complex content easy to understand, teaching very well. The author believes that to become such a teacher, we should first establish the correct view of teaching materials, give full play to initiative. The following, the author combines the teaching case of “Mathematics 4” (compulsory) the first chapter “1.3.3 function y = Asin (ωx + φ) image ” talk about some of the personal ideas in order to teach in the peer. 1 How to locate textbooks 1.1 textbooks for students to improve their learning methods to create a platform 1.1.1 to provide basic materials for learning