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Hooks students through an exciting number trick. Explores why number tricks work through a pictorial approach (algebra tiles), leading to the concept of operations that "undo" each other. Translates this concept to an understanding of canceling in algebraic expressions. Teaches students how to take a two-step expression and undo it. Finishes by asking students to creatively design their own number trick so everybody can try out someone else's.
This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 3, as of 2011-09-29.
Not Rated Yet.