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#sigmastrong at #maathfest 2014 Portland, OR (at Hilton Portland & Executive Tower)

#sigmastrong at #maathfest 2014 Portland, OR (at Hilton Portland & Executive Tower)

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#centerofmath #calculus #tbt

#centerofmath #calculus #tbt

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#mathquote

#mathquote

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#centerofmath #tbt from MAA #MAAthFest 2013 Hartford, CT

#centerofmath #tbt from MAA #MAAthFest 2013 Hartford, CT

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#dothemath #centerofmath take notes

#dothemath #centerofmath take notes

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A “lovely” equation!

A “lovely” equation!

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1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 … all in one square!

1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 … all in one square!

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#math #mathquote

#math #mathquote

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(Source: sub-division-blog, via imathematicus)

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A visual explanation of why the area of a circle = πr^2

A visual explanation of why the area of a circle = πr^2

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visit centerofmath.org for more info!

visit centerofmath.org for more info!

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The #US won their first game against #Ghana this past Monday. They have a long road ahead, with lots of travel. See the #numbers behind it!

The #US won their first game against #Ghana this past Monday. They have a long road ahead, with lots of travel. See the #numbers behind it!

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Check out our Post on the science behind penalty kicks! #WorldCup #dothemath #math on the #blackboard

Check out our Post on the science behind penalty kicks! #WorldCup #dothemath #math on the #blackboard

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#centerofmath textbooks, print and digital | centerofmath.org/store | #apcalculus #worldwidecalculus

#centerofmath textbooks, print and digital | centerofmath.org/store | #apcalculus #worldwidecalculus

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