Meaning
What does Math Is Math mean?
Math is math is the original version of a type of snowclone meme that usually aims to emphasize the congeniality of two seemingly different things.
It is often used in arguments and under controversial topics, with the base formula being: X is X.
Origin
What's the origin of Math Is Math?
The meme originates from the 2018 animated movie The Incredibles 2.
Mr. Incredible, who is one of the movie’s protagonist, tries to help his son Dash with absolving his math homework. He says math is math in an agitated way, soon after they start the session.
This happens because, though he solves the equations, his son keeps mocking him for the reason he doesn’t use the methods that the school teaches to them.
Spread & Usage
How did Math Is Math spread?
In the same year of the movie’s release, the frame of Mr. Incredible saying “math is math” was posted to /r/ dankmemes.
Later it was also featured on 9gag. That appearance and exposure eventually brought the success for the meme format.
External resources
 Reddit – Lies : dankmemes

9GAG – Those teachers are the worst