Curriculum>Grade 1> Module 1>Topic D: The Commutative Property of Addition and the Equal Sign

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Students practice filling in the blank in an expression to make it equal to another expression. Then, students practice solving addition equations that share the same addends and sums

A. Solve simple addition equations and observe that changing the order of the addends doesn't change the sum

B. Explore expressions and reinforce the commutative property of addition

D. Identify and create equal and non equal addition expressions

E. Use the equal sign to show and create equal expressions (Part 1)

F. Use the equal sign to show and create equal expressions (Part 2)

G. Identify whether number sentences are true and false

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