Lesson 12 of Shell Mathematics Network is very good, and the pro-test is effective. No matter which stage of study, the most taboo is to be quick, quick and short. You see, no matter which field, it is a sharp weapon to cut leeks. Mathematics in senior high school must start with the most basic knowledge points, concepts and foundations, and then continue to Gai Lou with a problem. I learned about this online course in June 19 1 1. After listening to the audition class, I felt really good. My former teacher didn't know trigonometry and catch at all, but later I did.

Online courses:

Network course is the sum of the teaching contents and activities of a certain subject expressed through the network, and it is a new manifestation of the course in the information age. It includes the teaching content organized according to certain teaching objectives and teaching strategies and the supporting environment of network teaching. Among them, the network teaching support environment refers to the software tools, teaching resources and teaching activities implemented on the network teaching platform. The characteristics of online courses are interactivity, interest, openness, collaboration and autonomy.