During his forty-year association with the Los Alamos National Laboratory, mathematician Stanislaw Ulam wrote many Laboratory Reports, usually in collaboration

Metaphors show students how to make connections between the concrete and the abstract, prior knowledge and unfamiliar concepts, and language and image. But teac

How we reason with mathematical ideas continues to be a fascinating and challenging topic of research--particularly with the rapid and diverse developments in t

From World War I to Operation Desert Storm, American policymakers have repeatedly invoked the "lessons of history" as they contemplated taking their nation to w