Author Ed Southall of Solve My Maths shared a math problem on Twitter asking people to figure out what fraction of a square is shaded pink. Twitter users struggled to figure it out, but some got it ...

Adjust the colors to reduce glare and give your eyes a break. Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS ...

Periodically during tax season a meme goes around saying something like this: I sure am glad we studied triangles every time triangle season comes around. The implication here is that we never need ...