Lesson Plan

The Factor Tree Strategy

Let's talk factors and products! Teach your students the factor tree strategy for finding all factors of a product. This lesson can be taught on its own or used as support to the lesson Divisibility Rules.
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This lesson can be used as a pre-lesson for the Divisibility Rules lesson plan.
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This lesson can be used as a pre-lesson for the Divisibility Rules lesson plan.

Objectives

Academic

Students will be able to use divisibility rules to determine factors of whole numbers.

Language

Students will be able to identify prime factors of a whole number using the factor tree strategy.

Introduction

(3 minutes)
Factor TreeMatching Factor Tree CardsGraphic Organizer Template: Frayer ModelVocabulary Cards: The Factor Tree StrategyGlossary: The Factor Tree StrategyTeach Background Knowledge TemplateWrite Student-Facing Language Objectives Reference
  • Write the word "factor" on the board and ask students to discuss what the word means with a nearby partner.
  • Invite students to share their discussion and record their responses on the board. Inform students that a factor is a number that is multiplied to get another number. For example, in the number sentence 5 x 6 = 30, the numbers 5 and 6 are factors.
  • Tell students that today they will a learn a strategy called factor trees to find all the factors of a whole number.