Students inspect divisibility rules. In this divisibility rules lesson, students study the relationship between factorization and the divisibility rules for 2, 3, 5, 6, 9, and 10. Students read One Hundred Hungry Ants and A Remainder of...

Students create a notebook with divisibility rules in it. In this algebra activity, students write down the rules that determine the factors of a number. They continue to add to the book and use it to help them on their problems.

Fifth graders complete activities related to prime and composite numbers. For this prime lesson, 5th graders make a hundreds chart with all the prime numbers. They create their own card game which deals with prime and composite...