Lesson Plan
Curated OER

Prime & Composite Numbers: Algebra/Geometry Institute 2009

For Teachers 7th - 8th
Learners create factor trees.  In this prime and composite lesson, students model fractions using tiles.  They create factor trees and identify prime and composite numbers.  Learners use grid paper and tiles to model...
Lesson Plan
Curated OER

Greatest Common Factor: Using the Factor Tree

For Teachers 9th - 10th
Students find the greatest common factor of two numbers. For this algebra lesson, students use prime factorization to find their factor to simplify equations. they create a factor tree to find the factors of composite numbers.
Lesson Plan
Curated OER

Mathematics: Prime and Composite Numbers

For Teachers 6th
Sixth graders explore how to apply the commutative property and the rules of divisibility. They examine the difference between prime and composite numbers.