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1007936
This virtual manipulative challenges the learner to find the prime factors for a pair of numbers. The factors for each number are displayed in a tree diagram from which the student drags the factors to the appropriate areas of a Venn diagram. The Venn diagram offers a useful visual display showing unique factors and common factors for the original pair of numbers. Using the display, the learner must find the pair's least common multiple (LCM) and greatest common factor (GCF). Buttons allow users to check their answers and select new problems. Instructions for using the manipulative are included, along with information about factoring. The site also links to the NCTM standard for number and operations. Copyright 2005 Eisenhower National Clearinghouse

Summary

Subject keyword(s)Arithmetic, Composition and decomposition of numbers, Factors, Number and operations, Number theory, Primes
Grade levelElementary School, Middle School, Informal Education
Intended audienceLearner
Resource typeInstructional Material
Resource formattext, text/html
RightsCopyright 2003 MATTI Associates LLC. All rights reserved.

Using this resource

Usage Data

Found in collection(s)

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MSP2: Math and Science Pathways

Content contained within the resource

Factor tree (grades 6-8)