Number Wheel
'Money Saving Mom' featured an easy-to-create math project that can be used multiple (no pun intended) times! http://moneysavingmom.com/2011/08/busy-bag-idea-number-wheel.html
I prepped 2 double-sided circles for a total of 4 versions.
My intent was to increase the difficulty with each version.
O surprised me and ripped through this activity like a pro!
Baby C also got involved, but more with the small motor bit of learning to open and close the pegs!