Add Yahoo as a preferred source to see more of our stories on Google. Whether you loved school or hated it, chances are good that you had a teacher you loved. Someone who helped you understand a tough ...

Come spring, everyone's a joker about math. That's because every March 14 — 3.14, that is — is Pi Day, so named for the set of numerals that make up its date. Sure, pi is technically the ratio of the ...

It turns out that images that evoke fond memories can soften pain. Scientists found that test subjects were less likely to perceive pain from a heating element on their arm if they were seeing ...