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Did you see us in the November issue 

of STEM Connections

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Have you figured out the solution to Turning Up The Volume?

(Didn't see the mystery? Click here.)

Want to see more? Each month we share a mystery on our website. See if you can solve the Mystery of the Month.


This mystery was drawn from 65 Short Mysteries You Solve with Math. Click on the book   cover for more       information.

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We also offer this book in a bilingual edition, perfect for English Language Learners, dual-language students, and anyone looking to expand their language and math skills 

¿hablas español?

In the holiday spirit, we are happy to offer

25% off and free shipping sitewide 

to ITEEA members.


Use code ITEEA to redeem this offer on before the end of 2018.