It seems that all the “new improved” math teaching methods tried over the years, are not so improved after all Many students are entering university not even knowing where they are on a world map.

Richard Elwes reports on Harvey Friedman’s fascinating work on incompleteness in Boolean relation theory, but it is quite a stretch to extend his work to ask “are the rules of arithmetic… unsound?” ...

Baby birds can do arithmetic, say researchers in Italy. Scientists from the universities of Padova and Trento demonstrated chicks' ability to add and subtract objects as they were moved behind two ...