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Lesson Plan
Alabama Learning Exchange

Finding Prime

For Teachers 5th - 7th Standards
Fifth and sixth graders explore prime numbers. They work with a partner to build rectangular arrays using twelve tiles. Factor pairs are noted and recorded on graph paper. Pupils construct rectangular arrays with a prime number and...
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Worksheet
Curated OER

Adding Objects In Rectangular Arrays

For Students 1st
These word problems have children use the provided images to solve word problems by adding objects in rectangular arrays. Use the raw material here, but edit the grammar and wording in the problems.
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Lesson Plan
Curated OER

Arrays

For Teachers 3rd
Third graders draw rectangular arrays to represent a multiplication fact.