Amidst the traditional slew of fake pregnancy announcements and social media jokes in celebration of April Fool’s Day, this math professor’s scheme is being hailed as the best holiday prank on the internet today. Matthew Weathers impressed his class on April 1st by “accidentally” getting marker on his projector screen. style=”display:inline-block;width:300px;height:250px” data-ad-client=”ca-pub-8420654331411867″ data-ad-slot=”1313712966″> When he can’t…