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Topic (Course) 
Technology 
Type 
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Factor Tree

Factor (Math 4) 
Java Applet 
Tool 

[9]

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 ...
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Factorizar

Factor (Math 4) 
Java Applet 
Tool 

[0]

Aprenda sobre factores construyendo arreglos rectangulares en una cuadrícula.
versión en inglés
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Factorizar 2

Factor (Math 4) 
Java Applet 
Tool 

[0]

Aprenda sobre factores construyendo arreglos rectangulares en una cuadrícula.
versión en inglés
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Factorize

Factor (Math 4) 
Java Applet 
Tool 

[2]

Learn about factors through building rectangular arrays on a grid.
Spanish version also available.
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Factorize 2

Factor (Math 4) 
Java Applet 
Tool 

[0]

Learn about factors through building rectangular arrays on a grid.
Spanish version also available.
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Polyrhythm

Least common multiple (Math 4) 
Java Applet 
Tool 

[0]

Students investigate different rhythms, both aurally and visually.
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Product Game

Factor (Math 4)+ 
Java Applet 
Tool 

[1]

The Product Game is a fun interactive game that exercises the users' skills with factors and multiples.
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Sieve of Eratosthenes

Number theory (Math 4) 
Java Applet 
Tool 

[0]

This virtual manipulative displays a grid containing numbers from 1 to 200. You can use it to explore patterns and relationships involving multiples.
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The Factor Game

Factor (Math 4) 
Java Applet 
Tool 

[4]

The Factor Game is an interactive game that exercises the user's factoring ability. The user can test their skills against another human or the computer.
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The Hispaniola Water Shortage

Number theory (Math 4) 
Java Applet 
Tool 

[0]

Students are asked to use virtual containers of water, of definite sizes, and combine them in various ways to come up with as many different resulting volumes as possible.
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Factoring Unit Quiz

Number theory (Math 4) 
JavaScript 
Tool 

[1]

The user can test their understanding of basic concepts of factoring, such as the greatest common factor and least common multiple using this online interactive quiz.
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Factors and Multiples

Prime (Math 4)+ 
JavaScript 
Tool 

[3]

The user learns about factors, multiples, prime and composite numbers, and how to find factors and multiples of given numbers. After veiwing examples, users can interactively practice factoring numbe...
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Greatest Common Factor

Greatest common factor (Math 4) 
JavaScript 
Tool 

[0]

The user learns about the greatest common factor and how to find it for two numbers. After viewing examples, users can interactively practice finding the greatest common factor for two numbers.
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Least Common Multiple

Least common multiple (Math 4) 
JavaScript 
Tool 

[0]

The user learns about least common multiples and how to find them. After viewing examples, users can interactively practice finding the least common multiple of two numbers.
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Multiples and Factors

Factor (Math 4)+ 
JavaScript 
Tool 

[2]

Review knowledge of multiples and factors through practice worksheets, fact sheets, and a threelevel quiz. A page for instructors gives UK curricular alignments and other useful web sites for teachin...
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Color by Numbers

Number theory (Math 4) 
Sketchpad 
Tool 

[0]

Students investigate patterns produced on a grid of numbers generated through addition and multiplication of the whole numbers. The focus is on elementary number theory concepts such as even/odd, fact...
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Grouping I and II

Number theory (Math 4) 
Sketchpad 
Tool 

[0]

Grouping I: The goal of this activity is twofold. First, it introduces students to Sketchpad's most important tools and menu commands. Second, it helps students appreciate how grouping objec...
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Jump Along

Number theory (Math 4) 
Sketchpad 
Tool 

[1]

This activity involves a number line along which students observe consecutive jumps, controlling both the number of jumps and jump size. This sketch can be used to model basic questions involving the ...
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Everyday Mathematics® Divisibi...

Divisibility tests (Math 4)+ 
iPad 
Tool 
$ 
[0]

This game offers a way to practice recognizing multiples of a number and applying divisibility tests. Players are presented with a target divisor and number globes in the playing area. They click the ...
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HandsOn Math Hundreds Chart

Number theory (Math 4) 
iPad 
Tool 
$ 
[0]

HandsOn Math: Interactive Hundreds Chart creates a virtual math playground where students explore, investigate and discover mathematical concepts. Students use colored markers on the Interactive H...
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HandsOn Math: Tangle Tables

Factor (Math 4) 
iPad 
Tool 
$ 
[0]

Tangle Tables offers 12 levels of difficulty. Younger learners will benefit from the settings where the challenge is to find the sum or product and complete the table. For older students teachers may ...
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Factor POP!!

Factor (Math 4)+ 
iPhone 
Tool 

[0]

Factor POP! challenges users to utilize math skills and quick fingers. Buttons scroll across the screens at a chosen speed, and the user has to pop the buttons that are multiples or factors of the cho...
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Containers

Number theory (Math 4) 
Java Applet 
Technology PoW 

[1]

Use two measuring cups of a particular size to figure out how to measure out other quantities.
NOTE: A free login is required. Sign up using the link on the login page, or use your...
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