Lesson Plan
Curated OER

Prime & Composite Numbers: Algebra/Geometry Institute 2009

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

Greatest Common Factor: Using the Factor Tree

For Teachers 9th - 10th
Learners find the greatest common factor of two numbers. In 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.