Flashing Those Lego Feathers

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.

Flashing Those Lego Feathers

October 10, 2017

Anyone who’s played with Lego knows you can build amazing creations from those tiny bricks. But artist Sean Kenney has taken this toy to the wild side. He makes giant Lego animals that almost look real, they’re so colorful and perfectly shaped. This 5-foot-wide peacock uses more than 68,000 pieces of Lego! His spotted leopard uses 31,000 pieces, and a polar bear with her cubs uses a whopping 125,000 bricks. The heaviest animal Sean has built weighs 400 pounds all by itself — which might be why Sean now owns more than 4 tons of Lego.  Click here to see more of Sean’s brick critters!

Lego polar bears
Wee ones: If the mama Lego polar bear has 3 cubs, how many bear family members did Sean build?

Little kids: The peacock tail uses 3 shades of blue, 4 shades of green, a grey and a brown. How many colors is that?  Bonus: If you stack a blue brick, then a green, a grey, and a brown, then start over with blue to repeat, what color is the 13th piece?

Big kids: If Sean owned exactly 4 short tons of Lego, how many pounds would that be? (A short ton has 2,000 pounds.)  Bonus: If you build your own Lego anteater, and the number of bricks is halfway between the 32,000-piece leopard and the 60,000-piece butterfly, how many pieces do you use?

The sky’s the limit: Quick: if each row of the peacock’s eyes has 2 more eyes than the row before, and 3 touching rows have 48 eyes, how many eyes does the longest row have?

 

 

 

Answers:
Wee ones: 4 polar bears.

Little kids: 9 colors.  Bonus: Blue.

Big kids: 8,000 pounds of Lego.  Bonus: 46,000 pieces. The other two animals are 28,000 pieces apart, so yours is 14,000 more than the leopard and 14,000 less than the butterfly.

The sky’s the limit: 18 eyes.  If all the rows were the same, they’d each have 16 eyes (48 divided by 3). We can then just shift 2 eyes from one row to another to get 14, 16, and 18.

And thank you Sean for letting us share your incredible pictures!

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About the Author

Laura Overdeck

Laura Overdeck

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 while still in diapers, and her dad had her using power tools at a very unsafe age, measuring lengths, widths and angles in the process. Armed with this early love of numbers, Laura went on to get a BA in astrophysics from Princeton University, and an MBA from the Wharton School of Business; she continues to star-gaze today. Laura’s other interests include her three lively children, chocolate, extreme vehicles, and Lego Mindstorms.

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