We're doing the same sort of thing, LMom. Today for math, we did area and perimeter of squares, rectangles, and irregular figures (like a rectangle with a square chunk taken out of it). Working with the sqares led us to some stuff with square roots and squaring numbers--so we covered all the 2x2/3x3/4x4 pairs in the multiplication table and found a neat pattern there, plus he found the square root of 121.
It all allowed us to do some work with times tables without the painful memory work that failed so miserably last year.
It was pretty advanced geometry and pre-algebra stuff...plus boring times tables snuck in!
<singing>
Just a spoonful of ha-ard helps the ea-easy go down,
the ea-easy go do-own,
ea-easy go down!