2. Then click on the lecture, and you will enter the relevant page. You can see that there are all categories, ranking editions, famous teachers, famous schools, open classes and famous teachers' forums in the red navigation bar. Choose your favorite, as shown below.
3. Click to enter the open class page, and you can see that there are four new classes on the big screen of the home page today. You can choose to listen to a new class or drop down to see other academic courses, as shown in the figure below.
4. Just click on the course you are interested in below, as shown in the figure below.
5. Click on the course you like to enter, and you can see the lecturer introduction and course introduction of related courses, as shown in the figure below.
6. Drop down to find the course discussion area, and you can evaluate the academic courses, as shown below.