Emily Long is a freelance writer based in Salt Lake City. After graduating from Duke University, she spent several years reporting on the federal workforce for Government Executive, a publication of ...

Designer Stefanie Posavec has turned one her existing art projects — a way to colorfully visualize long, complex multiplication calculations — into a web app that any one can try. Designer Stefanie ...

Fractions are the basis for most higher-level mathematics. Students need to master the numerical values in earlier grades to tackle topics like algebra later. There’s only one hitch: Fractions can ...