Daily KenKen® for

KenKen is a logic puzzle that involves arithmetic. Similar to SuDoku, KenKen will exercise your mind as you fill in the blanks. Pick your poison — easy or hard, only addition or all four operations.

Solutions posted the following day… check back tomorrow!

Order of Operation Bingo

BINGO! We found the perfect lesson for you! Instead of calling numbers to play Bingo, you call (and write) expressions to be evaluated for the numbers on the Bingo cards.

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Video: Serving Up Classroom Fun!

Laurie Penney, a teacher at Willard School in Concord, Mass., was a participant at the 2011 Illuminations Summer Institute. As a follow-up to the lesson How Many Each?, which she created during the institute, she recently helped to develop Illuminations’s newest online activity, Quotient Café.

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Celebrate Pi Day!

Find your favorite Pi Day postcard and share it with your fellow teachers, friends, or family. Choose from 6 designs and with a quick click send it via Twitter, Facebook, or Pin it. Find your favorite Pi Day card now!