EASEL BY TPT

Total:
\$0.00

# Prime Factorization Worksheets - Factor Trees and Ladder Method Activities

Rated 4.62 out of 5, based on 13 reviews
13 Ratings
;
Brenda Kovich
4.4k Followers
4th - 6th, Homeschool
Subjects
Resource Type
Standards
Formats Included
• PDF
Pages
20 pages
Report this resource to TPT
Brenda Kovich
4.4k Followers
Easel Activity Included
This resource includes a ready-to-use interactive activity students can complete on any device.  Easel by TPT is free to use! Learn more.

#### What educators are saying

Children I tutor do well grasping concepts when there is a simple graphic to explain the concept. This is a great resource.
##### Also included in
1. Scaffold understanding of factors and multiples. Begin with arrays. Then list factors of numbers 1-100 with cards and worksheets. When kids are ready, move on to prime factorization. Finally, provide plenty of practice with a number of the day.Open the previews to get a closer look at this bundle.Fi
Price \$11.00Original Price \$14.00Save \$3.00

#### Learning Objective

Find prime factorization using factor trees and the ladder method.

### Description

Teaching prime factorization? Make decomposing numbers fun and easy with factor trees and the ladder method. Then your math students will be able to express a whole number as a product of its prime factors.

Open the preview to take a closer look at the activities.

To decompose a number with a factor tree, kids continuously find factor pairs until all are prime. The first page of six worksheets provides directions and an example.

With the ladder method, they continuously divide by prime numbers until they get to one. Again, the first page of six worksheets provides directions and an example.

Why teach prime factorization?

• It gives kids deeper conceptual understanding of multiplication, division, and relationships between numbers.
• Understanding how each whole number decomposes to a set of primes provides a foundation for number theory and prepares kids for higher math.
• At this age, for example, kids need it to handle fractions. (1) To write a fraction in lowest terms, students will better understand how to continually cancel and/or find the greatest common factor (GCF). (2) To add or subtract unlike fractions, they’ll grasp concepts necessary to find the least common multiple (LCM).

Files include everything you need to teach prime factorization in fourth, fifth, or sixth grade:

• Factor tree and ladder method reference guides to use as instructional tools, anchor charts, or handouts
• Divisibility rules poster (and parallel “Is It Prime?” handout for students)
• 6 factor tree worksheets

Resources can be used in a variety of ways.

• Whole class instruction or practice
• Test prep
• Small group work, remediation, or tutoring
• Homework
• Sub plans

Your students will love it – and so will you!

• Decomposing numbers in a repetitive, pictorial way provides helpful strategies – and is satisfying to young mathematicians.
• Your students will have deeper understanding of multiplication, division, and relationships between whole numbers.
• Activities address the intent of your standards. For example, these activities extend CCSS 4.OA.B.4, which asks kids to find factor pairs and determine if a number is prime or composite. Furthermore, it provides background concepts for CCSS 6.NS.B.4.

Listen to what another educator says about these resources.

• “Children I tutor do well grasping concepts when there is a simple graphic to explain the concept. This is a great resource.” – Joy B.

Printable and digital versions of each worksheet are included.

• A PDF provides a traditional pencil and paper option.
• Easel Activities offer digital versions.

You can scaffold learning with related resources.

Enjoy teaching factor trees and the ladder method!

Brenda Kovich

Would you like to know when I post more resources? Just follow me on TPT.

I’m committed to continual improvement. This resource was updated on June 3, 2022.

Total Pages
20 pages
Included
Teaching Duration
1 Week
Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT’s content guidelines.

### Standards

to see state-specific standards (only available in the US).
Find all factor pairs for a whole number in the range 1-100. 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. Determine whether a given whole number in the range 1-100 is prime or composite.