Excellent multiplication array activity Great for use in small group or bulletin board activity.
How to make giant cardboard dice - fun for math learning, games, or settling arguments between kids with a quick roll.
addition or 9 times tables
printable base 10 blocks (MUS colors)- will use on the magnetic board!
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It's not exactly Lego, but great manipulatives with similar principles.
O-G Math - gonna have to read soon!