A-REI.1.1

Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.

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Formative Assessments
Formative Assessments
Virtual/Hands-on Manipulatives
Virtual/Hands-on Manipulatives
Assessment Questions
Assessment Questions
Videos of Expert Instruction
Videos of Expert Instruction
Math Literature
Math Literature