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Quirky back-to-school gifts

Pi by numbers Price: $16.99 - $18.99 Know a mathlete ready to start back in the classroom? Help him or her show off love for one of math's favorite symbols.
ThinkGeek.com
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Pi by numbers

Price: $16.99 - $18.99

Know a mathlete ready to start back in the classroom? Help him or her show off love for one of math's favorite symbols.