# Math concepts

Talley, greater and lesser, etc.

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Are you celebrating Pi Day tomorrow? It is a special Pi Day as the date 3/14/15 is the first five digits in the ratio of the circumference of a circle to its diameter. What a great opportunity to read aloud math books! Here are some suggestions for children ages 3 to12: "Bedtime Math: A Fun Excuse to Stay Up Late" by Laura Overdeck @bedtimemath; "Why Pi?" by Johnny Ball; and "Sir Cumference and the Dragon of Pi (A Math Adventure)" by Cindy Neuschwander.