Jenny Quinn travels with math in her backpack. She unpacks it piece by piece: bright, 3D-printed shapes that click together into perfect rectangles. As she moves the Fibonacci sequence puzzle around, ...

All of modern mathematics is built on the foundation of set theory, the study of how to organize abstract collections of objects. But in general, research mathematicians don’t need to think about it ...

Jenny Quinn, executive director of the Seattle Universal Math Museum, shows off a solved Fibonacci sequence puzzle. (GeekWire Photo / Maddie Stoll) Jenny Quinn travels with math in her backpack. She ...