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8/28/2014 8:44 AM
  
8/14/2014 1:31 PM

Concept Passoffs - Practice junior-high level math concepts and get instant feedback! 


MegaMath - Drill basic math facts and improve your ability simplify problems in your head!

Spanish Practice - Practice listening, speaking, reading, and writing some basic conversational Spanish!

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Caracaol - Chichen Itza

El Caracol is an observatory the Mayans built at Chichen Itza. Learn more at: the Exploratorium.

Photographer: Daniel Schwen

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