EmbedVideo (1266, 482, 304); Editor's Note: We've been looking at inequality quite a bit lately. In the piece 'Land of the Free, Home of the Poor,' we used a trio of pie charts broken down into ...

A pie chart with some missing information could be used as a starting point, from which to calculate unknowns. The end sketch (Fraction Karate) leads to calculating fractions of fractions ...

Learn how to use and read a pie chart with this KS2 Maths guide from BBC Bitesize.

It wouldn't be National Pi Day at Wonkblog without some pie charts to mark the momentous occasion. The versatile chart can be used in all sorts of situations.

To display a record of information in a graphical interface, pie charts, bar diagrams, and other such chart diagrams are the best ways to present or communicate information visually.

Free pie, lunar eclipse festivities at The Exploratorium’s Pi Day On March 14, celebrate the mathematical awesomeness of 3.14 at San Francisco’s Pier 15.

A report in the Hill details the extent to which the incoming administration of Donald Trump wants to slash the federal budget. Big cuts to major government departments are mentioned, as are cuts ...