A Record of Observation and Evaluation in Senior High School Mathematics Group Classroom
Topic: Basic relations of trigonometric functions with the same angle.
Speaker: XXX
Time: 20xx year x month xx day
One,
self-assessment
The standard of this lesson requires understanding the basic relationship between trigonometric functions and angles. There are only two formulas and two examples in the textbook, and several exercises are provided after class. However, this part of the content requires higher requirements in the college entrance examination, especially the flexible use of formulas. In addition, the study of the formula of the same angle is of great help to the subsequent study of the trigonometric function of the sum and difference of two angles. I fully considered the cognitive characteristics of students when designing the classroom. From formula derivation, formula deformation, exercise setting and other links, it is step by step, from easy to difficult. When the formula is deformed, let the students give full play to their imagination and speak their own ideas boldly. I just did the necessary inspiration and guidance, and the students did well. Before class, according to the students' cognitive characteristics, I made temporary changes to the courseware, and changed Example 4, Example 2 and Example 3. In the middle of class, I adjust the teaching content in time according to the students' classroom performance, and the questions in one class are removed immediately, giving students sufficient display space and time. Facts have proved that such adjustment is in place. Never stifle students' interest when their minds are excited. My idea is that learning mathematics doesn't have to do many problems, but we should constantly optimize our thinking quality, improve our problem-solving ability and enrich our problem-solving experience in the process of doing problems and thinking.