How to explain itertools

Question

It's a very foreign concept.
How to teach it to a class?

Answer 1

That's a bit much to teach in one post so I'll refer you to some info and the docs:
https://www.blog.pythonlibrary.org/2016/04/20/JUMP_LINK__&&__python__&&__JUMP_LINK-201-an-intro-to-itertools/
Python 2.x
https://docs.python.org/2/library/itertools.html
Python 3.x
https://docs.python.org/3/library/itertools.html
If after reading and studying these, you have a more concise specific question about a specific part of using itertools, make a new post with that question.

Answer 2

Itertools is a Python module.
I kind of underatood what it means by random guess and check so you can try too.
Go to IDLE and try all the functions one by one

Answer 3

ps my class has basic CS knowledge, but nothing fancy