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Tool: Factor Tree
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Go to: http://nlvm.usu.edu/en/nav/frames_asid_202_g_3_t_1.html (opens a new window)
Description: This manipulative allows you to construct factor trees (to the prime factors) for two numbers, and then from the prime factorization, you are asked to identify the Least Common Multiple (LCM) and the Greatest Common Factor (GCF) of the two given numbers.
Technology Type: Java Applet 
Guide: User's Guide (opens a new window)
Author: National Library of Virtual Manipulatives (Utah State University)
Language: English 
Cost: Does not require payment for use

Average Rating:  [9] Login to rate this resource
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Reviews: see the 2 reviews of this resource / add a review of this Tool 
Discussions: see the 8 posts discussing this resource

Activity: Exploration: Factor Trees, Prime Factorization, GCF, LCM
Support Material: Ask Dr. Math: FAQ: Learning to Factor
Courses: Math 3 Factor
Math 4 Factor
Math 5 Factor
Math 6 Factor
Math 7 Factor
Algebra Natural, Multiply / Divide, Common Factors

Other Review (Not based on classroom experience)
Reviewer: arhard, Jun 11 2008 03:08:21:720PM
Appropriate for: introduction to a concept, practice of skills and understandings
Ability to meet my goals: Very Effective
Recommended for: Math 4: Number theory
Math 5: Number theory
Student Review (Not based on classroom experience)
Reviewer: AngieBrock, Nov 14 2005 04:09:00:593PM
Appropriate for: introduction to a concept, practice of skills and understandings, applications of a concept or technique
Ability to meet my goals: Effective
Recommended for: Algebra: Factoring Polynomials
Read the full length reviews for this resource
  Gpa
Comment:too low level for Algebra level work!