The student must be able to understand the meaning of an equal sign and must we able to pair equivalent expressions to make a true number sentence. They must be able to explain their reasoning and tell how they know the values on both sides of the equal sign are the same.
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1.5 Algebraic reasoning. The student applies mathematical process standards to identify and apply number patterns within properties of numbers and operations in order to describe relationships. The student is expected to:
(E) understand that the equal sign represents a relationship where expressions on each side of the equal sign represent the same value(s)