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Time to Puck-er Up

Time to Puck-er Up

Puck configurationHow many hockey pucks can you fit in a hockey rink? They can line up in neat rows and columns, where their centers form squares (see the picture). BUT if they line up honeycomb-style to make triangles, more fit in the same area! Pucks are 3 inches wide, so a 144-by-85-foot hockey rink can hold 576 rows of 340 pucks the "square" way, or 195,840 pucks...but the triangle way gives us 665 rows of 340 pucks, or 226,143. Next time you pack cupcakes in a box, you'll know which way fits the most!

Read the story. Talk through the numbers. Kids do best when you do the math together!

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