Unit Plan
Coolmath: Pre Algebra: Prime Factorizations Unit Plan
Cool Math

Coolmath: Pre Algebra: Prime Factorizations

For Students 4th - 6th Standards
In this tutorial, students learn how to do prime factorization by a few different methods, including factor trees and factor stacks. The exercises work their way up from 2-digit numbers up to 5 digits. Includes practice problems.
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Activity
Shodor Interactivate: Factorize Activity
Shodor Education Foundation

Shodor Interactivate: Factorize

For Students 3rd - 8th Standards
This Shodor site gives a brief explanation of factorization, and it allows you "to find all of the factorizations of a given number and then draw the product as the area of a rectangle on a grid."
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Wired Math: Primes and Prime Factors [Pdf] Unknown Type
University of Waterloo (Canada)

Wired Math: Primes and Prime Factors [Pdf]

For Students 3rd - 8th Standards
Explore primes, prime factors, and composites using this collection of worksheets. Lots of detailed examples, interesting math facts, and colorful visuals. Acrobat Reader required.
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Whiteboard
Class Flow: Factor Tree Whiteboard
ClassFlow

Class Flow: Factor Tree

For Teachers 3rd - 5th
[Free Registration/Login Required] The teacher will use this lesson plan to review multiplication factors.
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Activity
Math Drills: Prime Factorization Quiz Activity
Elias Saab

Math Drills: Prime Factorization Quiz

For Students 3rd - 8th Standards
This site is an interactive quiz which provides students with a prime factorization problem. Students input their solution and have the program evaluate it. Hints are available if the student needs them, and explanations are provided...
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Unit Plan
Scholastic: Study Jams! Math: Multiplication & Division: Prime Factorization Unit Plan
Scholastic

Scholastic: Study Jams! Math: Multiplication & Division: Prime Factorization

For Students 4th - 7th Standards
This site provides great practice on the concept of prime factorization. Students can first learn about the topic by watching a step by step instruction video that also points out areas of concern. Finally, students can practice their...
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Handout
Ixl Learning: Prime Factorization Handout
Quia

Ixl Learning: Prime Factorization

For Students 5th - 6th
Brush up on your math skills relating to prime factorization then try some practice problems to test your understanding.
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Whiteboard
Class Flow: Working With Prime and Composite Numbers Whiteboard
ClassFlow

Class Flow: Working With Prime and Composite Numbers

For Teachers 3rd - 8th Standards
[Free Registration/Login Required] This flipchart allows students to practice working with prime and composite numbers. Students learn how to do prime factorization.
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