Number Warm Up

Launch: http://www.ictgames.com/abacusInteger.html Introduce an Abacus in the classroom show how to represent numbers in the teens on the abacus  {...}

Pose problems Talk about ants. Tell a story about ants and that you were thinking that you could see 12 {...}

Launch: Using 2D shapes make a pattern so that kids are unable to see. Now use positional language to describe{...}