We've always appreciated LEGO's versatility but seeing it used as a mathematics tool really caught our attention. With just a few of the simplest of bricks you can make a dynamic math worksheet.
Simply add the 'bumps". To learn a bit more on how Mary-Ann of Counting Coconuts put it together pay her blog a visit. Browse around her blog some more and you will find all sorts of Montessori-inspired learning activities.
(Images: Counting Coconuts)