Back to school streak and lessons

Question

Hy fellow sololearners, about the back to school streak, what makes up a lesson is it a course or i just have to learn a module in a course

Answer 1

https://www.sololearn.com/post/499747/?ref=app

Answer 2

https://get.sololearn.com/back-to-school/contest-rules

Answer 3

A lesson's module a day keeps the "streak" going.

Answer 4

https://code.sololearn.com/WhxS7Gd2NnlF/?ref=app