The U.S. celebrates its stripey, starry flag on June 14 every year. But this flag hasn’t always been the same. Read on to see how it’s changed, and try the math the flag-makers have done throughout the years!
Memorial Day is the holiday where Americans celebrate all the soldiers who have protected our country. And since it is always the last Monday in May, it’s not always on the same date. Read on to do the math on this moving holiday!
We’re fans of playing with our food, especially when it’s colorful! Read on to do the mix-and-matching math of purple carrots, yellow tomatoes, and white squash.
How do you tell the story of Passover with a Rube Goldberg machine? Read on to find out, and do the math in this crazy telling of Passover!
Buffalo, those big furry animals also called bison, are the biggest animals in North America. They’re up to 11 feet long, weigh up to 2,000 pounds, and can jump pretty high, too! Click “Read More” to do some big buffalo math.
We know the wheel was invented by a bunch of cavemen thousands of years ago, but that wasn’t the end of it. It took centuries for people to see all the objects that could work – or work better – with wheels attached, resulting in all the cars, trucks, pulleys, and all our other machinery that uses spinny round things. Roller skates just showed up in the last couple of centuries: one version came out in 1760 but folks didn’t take to it, probably because they kept falling down. Then on this day in 1869, apparently Isaac Hodgson filed a patent for his roller skate, and the rest is history. Now we have sports played entirely on skates, like roller hockey, speed skating and roller derby. All of these go faster on wheels, but are a lot harder than playing on your regular old feet.
Today is April Fools’ Day, the day we play pranks on people, like freezing the milk in their cereal, to make them look like fools. Click “Read More” to do the April Fools’ Day math…and maybe get a few ideas for tricks!
You never know what’s buried in your backyard, and for one California couple, their yard held real treasure. When they saw a can sticking out of the ground, they dug it out and ended up finding eight cans filled with 1,427 gold coins! The mix of $5 coins, $10 coins and $20 coins was minted (made) between 1847 and 1894, back when Americans used coins for those amounts. If you add up all those $10s and $20s, the coins have a total face value of almost $28,000. But they are worth far more than that, because the older a coin, the fewer of that coin we still have, and so the more that coin is worth. One of the coins is worth over $1 million all by itself, and all together the collection is estimated at $10 million. So what do you do when you suddenly find $10 million of coins in your backyard? Bury them again, of course! But just to be safe, they picked a new spot.
It’s St. Patrick’s Day, that Irish holiday when we wear green clothes, eat green food, and maybe score some “luck of the Irish” for ourselves. There are leprechauns, those funny elf-like fellows from Irish fairy tales who are only as tall as kids, but have big magical powers. Supposedly they keep all their coins in a pot of gold at the end of a rainbow, which would be a great thing to find. It’s even better to find the leprechaun himself, because if you capture him he’ll grant you 3 wishes. Another Irish symbol is the shamrock, or 3-leaf clover, because long ago people in Ireland believed that carrying a clover kept you safe from evil spirits. It’s still a sign of good luck today, and 4-leaf clovers are even better luck. Who knows, maybe today you’ll find a leprechaun or a clover – or at the least, you’ll get to eat a green pretzel.
Learn how doing math with Pi can be just as much fun as eating pie!