What is an even number?

Have you ever noticed that numbers have a secret pattern hiding right in plain sight? It is the oldest pattern in mathematics: odd and even numbers! But what does that actually mean? Imagine lining up a giant pile of your favorite jelly beans. If you slide them across the table in pairs and every single sweet gets a buddy, that number is even! But if there is one lonely sweet left over? That makes it an odd number! This simple rule is so amazing that the ancient Greek Pythagoreans were obsessed with it 2,500 years ago! They believed numbers had personalities and that odd and even were the basic forces of the universe. Did you know that if you add two odd numbers together, the lonely sweets pair up, always making an even number? And what about the biggest trickster of all: zero? Believe it or not, zero is totally an even number! This ancient math secret isn't just floating in space; it decides things in your everyday life! It organizes the houses on your street and makes sure rolling a dice is perfectly fair. Let's uncover the amazing secrets of odd and even!