Reviewed and Approved

Creating Factor Pair "Trees"

Resource ID#: 29510

Primary Type: Lesson Plan

This document was generated on CPALMS -

In this lesson, students will practice identifying factor pairs of whole numbers. Students will then draw a triangle around their factor work so that it resembles a triangular tree. Students will then circle all of the prime numbers inside the tree. The circles might represent the balls or ornaments on a holiday tree if doing this lesson around the holidays. This lesson does not teach an understanding of factors or prime numbers but is, rather, a practice of the students' knowledge of these concepts.

General Information

Subject(s): Mathematics
Grade Level(s): 4
Intended Audience: Educators
Suggested Technology: Overhead Projector
Instructional Time: 45 Minute(s)
Freely Available: Yes
Keywords: factors, factor pairs, whole numbers, multiple, prime number, composite number
Instructional Design Framework(s): Direct Instruction, Cooperative Learning
Resource Collection: CPALMS Lesson Plan Development Initiative

Aligned Standards

Name Description
MAFS.4.OA.2.4: Investigate factors and multiples.

  1. Find all factor pairs for a whole number in the range 1–100.
  2. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1–100 is a multiple of a given one-digit number.
  3. Determine whether a given whole number in the range 1–100 is prime or composite.