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Ever noticed how students mix up the rules for adding, subtracting, multiplying and dividing integers? Students need a unifying framework to help make sense of the diverse rules. This unit presents that unifying concept with a novel representation that combines the best aspects of two different representations: number lines, and algebra tiles.
This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 3, as of 2010-01-29.
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