我从教多年,一直坚持写“教后感”,主要写每节课讲授的成功之处;或疏漏、失误、教训;或学生产生疑难的缘由;或学生的独到见解等。在写和再看的过程中,都能受到启发,吸取教训或得到借鉴。及时写“教后感”,是积累教学经验的好办法。现摘录三则于下: 一、“饱和溶液和不饱和溶液”教后感为帮助学生理解难懂的概念,可适当增加演示实验。如学生对“……叫做这种溶质的饱和溶液”中的这种溶质这几个字难理解,这时补充一个演示实验: I have been teaching for many years, and I have always insisted on writing “a sense of teaching.” It mainly writes about the successes taught in each class; or omissions, mistakes, and lessons; or the causes of problems for students; or the students’ unique opinions. In the process of writing and revisiting, you can be inspired, learn lessons or learn from them. Timely writing “post-teaching” is a good way to accumulate teaching experience. The three excerpts are as follows: First, the “saturated solution and unsaturated solution” teaching sense to help students understand difficult concepts, can increase the demonstration experiment. For example, if students are difficult to understand the solute in the “...saturated solution of this solute”, then a demonstration experiment should be added: