this is especially interesting to me, having taught CAD for twenty years. it seems to me that geometry skills have declined drastically since the early 90s, even in basic concepts, and even among engineers.
if so much of geometry's innate, the schools are one big fail.
at BBC news:'tests given to an amazonian tribe called the mundurucu suggest that our intuitions about geometry are innate.
researchers examined how the mundurucu think about lines, points and angles, comparing the results with equivalent tests on french and us schoolchildren.
the mundurucu showed comparable understanding, and even outperformed the students on tasks that asked about forms on spherical surfaces.'read on...
