In the English language, nouns can be either singular or plural. Sounds simple, right? You might be surprised by how often many plural English words are mistaken for singular.
Is "whom" really a word?? And when the heck are we supposed to use it? This simple grammar problem plagues most Americans. Because so many of us never learn the easy rule that can help us master this grammatic snafu.
Prime numbers are numbers greater than one whose only factors are one and itself. There are no negative prime numbers. But there are anti-prime numbers. In ancient Greece, Plato thought anti-primes were pretty neat.
Etymology is the study of the origins of words. It's such a cool, nerdy topic! In this clip, we learn about the origins of the words "enthusiasm" and "laconic".
Forget calculators! There are some really simple divisibility rules that are fun and easy to learn. Anyone can benefit from learning these tricks. Third graders, seventh graders, eleventh graders preparing for the SAT - they could all use these little tips.