Each course includes lessons - pages with the learning material and tests.
The navigation between these sections takes place in the upper right corner of the page:
Navigation through class lessons is done with the menu top left. Some lessons may have subpages, in which case it will be marked with the plus + in the title of the lesson. Clicking on the plus displays the list of subpages. There are 3 levels possible for such subpages.
The section Tests shows the list of all tests in the course.
In the News section, the author publishes new information that is relevant to the students.
In the Learning Groups section, the list of all groups in the course is accessible.