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Dear LOR user,

Thank you for being a big part of this community. To better support the initiatives around open educational resources in the state of Michigan, all resources on the Michigan Virtual Learning Object Repository (LOR) are being moved to #GoOpen Michigan (link is external) on September 30th, 2018. During the transition, our LOR will be moved to an archived state, not allowing new user registration or new content to be added. An email with more details was sent to registered users of the LOR in September. To make use of the great resources on the platform, we encourage you to create an account and add your own new resources to the #GoOpen Michigan platform (link is external).


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


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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