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This lesson "closes the loop" by bringing the conversation back to the number tricks that hooked students on equations in Lesson 1. Students take the symbolic approach of doing the same thing to both sides and apply it to complicated equations that they decipher through their understanding of number tricks.
This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 3, as of 2013-03-27.
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