Are courses and lessons same ?

Question

I joined back-to-school today. In order to complete it i need to learn one lesson a day but i can not find any lessons option please i need help.

Answer 1

No,lesson is different course is different with the example it will be clear for you,
>CSS fundamentals... is a course
>The basics... is the module
>What is CSS ?... Is a lesson.

Answer 2

Lessons will be inside the module in a course

Answer 3

Now I get it Lessons are squares which are inside circular icons called modules and modules are inside courses.
Right guys??

Answer 4

Ok so you mean lessons are inside of course.