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教学设计(1)本节课是关于正弦函数的图像和性质的探索性课题研究。要求学生通过学习,了解正弦线画正弦函数图像;了解周期函数和最小正周期的意义;会用五点法画出正弦函数在[0.2π]上的简图;掌握正弦函数的性质,并能运用性质解决简单的问题;激发学生学习和使用数学知识的兴趣,培养观察图像、归纳、抽象的能力,培养实事求是,理论和实际相结合的思维品质和科学态度。(2)三角函数的本质是函数。所以三
Teaching Design (1) This lesson is about exploratory research on the image and properties of sine functions. Students are required to learn the sinusoidal function of the sine curve through learning. To understand the meaning of the periodic function and the minimum positive period, a sketch of the sine function at [0.2π] will be drawn by the five-point method. The sine function’s properties Using nature to solve simple problems; stimulating students’ interest in learning and using mathematical knowledge; cultivating the ability to observe images, summarizing and abstraction; cultivating the thinking qualities and scientific attitudes of combining truth with facts and combining theory with practice. (2) The essence of trigonometric functions is a function. So three