Photo Archive
 Gordon Ritter with masters of hyperbolic geometry |
 Students ponder cake division dilemmas. |
 Kids explore real mathematics. |
 Students find a new proof to a classic problem in combinatorial geometry. |
 Bob Kaplan poses the question |
 coming to grips with it |
 colleagues |
 Ellen Kaplan starts to infinity. |
 Jim Tanton pausing for thought. |