(can use the same idea to show multiple ways of adding/subtracting) GREAT!-- multiplication unit to teach repeated addition, groups of, commutative property, and arrays. You could also replace one with a multiplication word problem and picture.

Coin Grab: fill a little cloth bag with an assortment of coins (you could also fill a paper lunch bag or little purse). Students take turns pull out a coin and graph it on their sheet. They do not grab a whole handful of coins at once-this is important to