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为改变陈旧的教学方法,我曾在《三角函数的图象和性质》的教学中进行了一些探索,现将这些极不成熟的东西写出来,请同行指正。根据在教师的指导下,以学生为主体来组织课堂教学活动的基本思想,我采用“学习提纲配合教材”的启发式教学法。具体做法是将这节的三部分内容:2.7用单位圆中的线段表示三角函数值;2.8正弦函数、余弦函数值图象和性质;2.9
In order to change the old teaching methods, I have made some explorations in the teaching of the image and nature of trigonometric functions. Now I will write these extremely immature things and ask them to correct them. According to the basic idea of organizing classroom teaching activities under the guidance of teachers and with students as the main body, I use the heuristic teaching method of “learning outlines and matching teaching materials”. The specific approach is to include three parts of this section: 2.7 The trigonometric function value is represented by the line segment in the unit circle; 2.8 The sine function, cosine function value image and the nature; 2.9