如果是由我来提供一篇“三角形的内角和”课例的话 ,我相信多数读者都很难耐着性子将其读完 (资料上见得多了 ) .但是 ,东江老师提供的课例 ,一如既往总是富于情节 .除非你根本不看 ,否则就很难不“一口气看完” ,看完之后也很难不产生一些感觉 .无论是从正面经验积累还是从反? If it is for me to provide a “triangle inside angle” and class examples, I believe most readers will find it difficult to read through them (see more on the data). However, the lessons provided by Dongjiang are as always. It is full of plots. Unless you don’t look at it at all, it is very difficult not to “read through at once”. After reading it, it is very difficult to produce some feelings. Whether it is accumulated from positive experiences or vice versa?