What’s his angle? Teen frustrated by plastic protractor reimagines the classic classroom tool

Wenxin Fang of Redmond, Wash., launched a hardware startup to create the ZeroPivot Protractor, a sleek, precision-machined aluminum replacement for the tool that gave him problems in math class.
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Readers’ vote: 37 math jokes and puns that actually make numbers fun

Discover 37 funny math jokes to help teachers and students make math class fun. The best math jokes for kids make math ...
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Mathematicians finally cracked a backward-sprinkler puzzle that stumped physicists

Researchers have settled a physics riddle that persisted for more than a century: what happens when a lawn sprinkler sucks ...