Tour of Practicum by Yandex
Every profession or course in Practicum by Yandex consists of multiple courses. Courses are divided into topics, which are divided into lessons.
Courses
To choose a course, go to the main page of the service. Once selected, you will be taken to the course page. All available courses are shown under Your courses:
Your progress is displayed at the top of the page. Each section of the bar represents a course. Hover over a section to see the course name, the approximate completion time, and the topic you're currently studying.
Course topics
To view the list of topics in a course, click the course name under Your courses. This opens a screen with a description of the course and list of topics.
Some topics are marked with a 
. These have prerequisites and can only be accessed after finishing the previous topics.
Lessons
To view the list of lessons, click the name of the topic. This opens a screen with a description of the topic and the list of lessons.
Some lessons are marked with a . These have prerequisites and can only be accessed after finishing the previous lessons.
To start a lesson, click the lesson name.