Alabama Learning Exchange
Finding Prime
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...
Curated OER
Adding Objects In Rectangular Arrays
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.