It looks to me like some significant part of the vocabulary of "common core" math is very similar to that used in J.
http://commoncore.org/maps/math/video-gallery/array-and-area-models Of course, there are some differences also - but perhaps J will be easy for modern grade schoolers to pick up? Food for thought, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
