# Slow but Super Snails

Here's your nightly math! Just 5 quick minutes of number fun for kids and parents at home. Read a cool fun fact, followed by math riddles at different levels so everyone can jump in. Your kids will love you for it.

# Slow but Super Snails

April 9, 2018

It must be tough being a snail: snails can move only about 3 inches per minute. But they do have those cool spiral shells, whose shape uses math! If you draw 2 equal squares right next to each other, and then a square up against them that’s as tall as those 2 squares together, and you keep going around adding bigger squares…you can connect their corners to draw a snail spiral. The numbers are cool because each square’s edge equals the last 2 edges added together, giving you 1, 1, 2, 3, 5, 8, 13, 21…These are called the Fibonacci numbers, named after the guy who discovered them. The bigger the snail, the bigger the spiral — but the snail might not be any speedier.

Wee ones: Can you find a spiral shape in your room? If not, try rolling a hair ribbon, shoelace, belt, or thin sock into a spiral.

Little kids: If a snail can move only 3 inches per minute, how far can your pet snail travel in 2 minutes?  Bonus: Who can go farther, a 2-inch-per-minute snail in 4 minutes, or a speedy 6-inch-per-minute snail in 1 minute?

Big kids: As you look at that string of numbers — 1, 1, 2, 3, 5, 8, 13, 21– what should the next number be?  Bonus: How often do even numbers pop up, and why?