Simply put, the advantages of chalk are low price, online teaching, and no geographical and spatial restrictions; The disadvantage is that it is difficult for teachers to play a supervisory role and there is less interaction; Chalk online teaching is really cheap and convenient, but because there are many people watching it, it is difficult for teachers to communicate with every student. Teaching is a two-way process, but in chalk, this process is one-way.

At the beginning of the foundation of the public examination, I searched online first, and all kinds of dry goods were recommended, which was dazzling. After saving some seemingly dry materials, I think we should study comprehensively according to the basic courses, because these shared materials are fragmentary and suitable for reading again as a basis.

Extended data:

Chalk's Theory of Rules and Dong's online class are really suitable for registration. In reference books, I mainly understand the types of questions explained. The basic skills and examples of answering questions are some classic questions. The steps and ideas of solving problems are clearly written, but there are still many places that I don't understand when I read them.

In order to further study the application foundation, her lectures are more interesting and easier to concentrate than reading books. The content is relatively concentrated, some basic knowledge is the foundation, and the skills that are difficult and difficult are more detailed.

I usually choose to go to class after work at night. I can concentrate on my writing skills. I can take many notes. Every time I listen to a class, I get a lot of gains. Listen to the whole class, and then look at the ideas of the materials and themes, but at the beginning, my grades were still poor and many skills were not used.