Is a deer taller than a zebra?

     

When you put cheese on a hamburger, you get a cheeseburger. When you combine a spoon with a fork, you get a spork. But what vày you get when you put a zebra with a giraffe? You get something lượt thích the okapi, a strange animal from the middle of Africa. It has the stripes and short neông chồng of a zebra, but is a closer cousin of the giraffe. Only its legs, tummy và butt have sầu stripes, maybe so baby okapis can see & follow their mom through the tall grass. Like a giraffe, the okapi eats leaves from trees using its tongue, which is so long that an okapi can lick its own eyelids and ears khổng lồ clean them! But unlike a giraffe, okapis stvà only about 5 or 6 feet at the shoulder, while their giraffe cousins are about 3 times as tall. Maybe okapis feel lượt thích they fit in better with the zebras.

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Wee ones: How many legs does an okapi have?

Little kids: If you pat a white stripe on the okapi, then a blaông chồng stripe, then a white, then a black, what are the next 3 stripes you pat after that? Bonus: Baby giraffes start out tall. If a 6-foot okapi hangs out with his 11-foot baby giraffe cousin, how much taller is the giraffe?

Big kids: A giraffe’s tongue is about 20 inches long — almost 2 feet! If your tongue is 5 inches long (starting from the baông xã of your head), how many of your tongue kết thúc khổng lồ kết thúc would match a giraffe’s tongue? Bonus: We can’t tell you how tall our pet giraffe is, but if you take its height in feet, double it and add 5, you get 43. How tall is the giraffe?

The sky’s the limit: If giraffes, okapis and zebras are all hanging out together, và there are twice as many giraffes as okapis but twice as many striped animals as giraffes, and there are 12 more zebras than okapis, how many are there of each animal?

Answers:Wee ones: 4 legs.

Little kids: White, blaông chồng, Trắng. Bonus: 5 feet taller.

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Big kids: 4 of your tongue. Bonus: 19 feet.

The sky’s the limit: 6 okapis, 12 giraffes, và 18 zebras. If there are twice as many okapis và zebras together as giraffes, và the okapis are half the giraffe number, then the okapis are just 1/4 of the “stripe” total. Zebras have sầu to cover the other ba phần tư. So there are 3 times as many zebras as okapis. That gap of 12 is like two more of those sets of okapis. That gives us 6 okapis và 18 zebras. That means there are 24 striped animals in total; giraffes are half of that, giving us 12 giraffes. So we did over up with twice as many giraffes as okapis.


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Laura Bilodeau Overdeck is founder and president of Bedtime Math Foundation. Her goal is to make math as playful for kids as it was for her when she was a child. Her mom had Laura baking before she could walk, & her dad had her using power tools at a very unsafe age, measuring lengths, widths & angles in the process. Armed with this early love sầu of numbers, Laura went on lớn get a BA in astrophysics from Princeton University, and an MBA from the Wharton School of Business; she continues khổng lồ star-gaze today. Laura’s other interests include her three lively children, chocolate, extreme vehicles, và Lego Mindstorms.


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