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CCSS.MATH.CONTENT.3.OA.9

Solve problems involving the four operations, and identify and explain patterns in arithmetic.

Description

Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.

This third grade math unit is composed of two parts that I created.  First, there are videos for the first six lessons of Math Expressions Unit 1 for Third Grade and their accompanying scripts.  These videos can be posted to a site like Google Classroom so that students can work at their own pace while the teacher helps those who need their attention the most.  Secondly, there is

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