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Topic (Course) 
Technology 
Type 
$? 
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Digit Card Problems

Factor (Math 5)+ 
Computer 
Tool 
$ 
[0]

Alterable worksheet in which students are presented with four digits and are asked to form twodigit numbers that sum to be a multiple of a given number, or are asked to choose two factors of a given ...
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Highest Common Factor

Factor (Math 5)+ 
Computer 
Tool 
$ 
[0]

Students write the greatest common factor of two given integers in this alterable worksheet. Fee required to print; see this page for details.
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Lowest Common Multiple

Multiple (Math 5)+ 
Computer 
Tool 
$ 
[0]

Students write the lowest common multiple of two given integers in this alterable worksheet. Fee required to print; see this page for details.
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Sorting Numbers in a Venn Diag...

Multiple (Math 5) 
Computer 
Tool 
$ 
[0]

Alterable worksheet in which students sort sets of numbers on Venn diagrams. Fee required to print; see this page.
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Everyday Mathematics® Divisibi...

Divisibility tests (Math 5)+ 
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 5) 
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 5) 
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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Exploration: Factor Trees, Pri...

Factor (Math 5) 
Java Applet 
Activity 

[1]

What a treasure this NLVM applet is! This lesson has been successful with students of all ability levels in grades 5  8 (change the examples for lower grades). Many teachers are not aware of this eff...
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Polyrhythm Problem

Least common multiple (Math 5) 
Java Applet 
Activity 

[0]

Students investigate different rhythms, both aurally and visually, using the applet. They then quantify these rhythms based on the accented beats.
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The Hispaniola Water Shortage ...

Number theory (Math 5) 
Java Applet 
Activity 

[0]

Gives students an introduction to number theory by emphasizing the significance of starting with containers of different parity, as compared to containers of the same parity. Some implied work with mo...
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Factors Lesson

Prime (Math 5)+ 
Calculator 
Lesson Plan 

[1]

Students will learn how to factor numbers by using manipulatives and computer applets.
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An Introduction to Arithmetic ...

Sequences & series (Math 5) 
Java Applet 
Lesson Plan 

[0]

This lesson is designed to introduce students to the idea of an arithmetic sequence.
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Graphical Representations for ...

Least common multiple (Math 5) 
Java Applet 
Lesson Plan 

[1]

Finding a rule for the number of hits is only the first step in exploring the Paper Pool game. Students can gain a deeper understanding of the patterns by considering graphical representations of the ...
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How Many Hits?

Least common multiple (Math 5) 
Java Applet 
Lesson Plan 

[1]

Students will continue their investigation of the Paper Pool game by exploring more tables and organizing the results. Using the data that they collect, they will attempt to find a relationship betwee...
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Pascal's Triangle Lesson

Pascal's triangle (Math 5) 
Java Applet 
Lesson Plan 

[0]

The following discussions and activities are designed to lead the students to explore the number patterns and fractal properties of Pascal's Triangle. Basic arithmetic operations of multiplication and...
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Pascal's Triangle Lessons

Pascal's triangle (Math 5) 
Java Applet 
Lesson Plan 

[0]

A Web unit designed to support workshops given by the Math Forum for the Urban Systemic Initiative (Philadephia and San Diego). Read about the history of Pascal's triangle and learn to construct it; v...
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Patterns in Pascal's Triangle

Pascal's triangle (Math 5) 
Java Applet 
Lesson Plan 

[0]

This lesson is designed to show students that patterns exist in the Pascal's Triangle, and to reinforce student's ability to identify patterns.
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Polyrhythm Teacher Support

Least common multiple (Math 5) 
Java Applet 
Lesson Plan 

[0]

Links to NCTM Standards, related activities, lessons, Ask Dr. Math archives, vocabulary, and other resources.
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The Factor Game

Prime (Math 5)+ 
Java Applet 
Lesson Plan 

[4]

The Factor Game engages students in a friendly contest in which winning strategies involve distinguishing between numbers with many factors and numbers with few factors. Students are then guided th...
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The Hispaniola Water Shortage ...

Number theory (Math 5) 
Java Applet 
Lesson Plan 

[0]

Links to Standards, activities, lessons, Ask Dr. Math archives, vocabulary, other resources.
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Which Pocket?

Least common multiple (Math 5) 
Java Applet 
Lesson Plan 

[2]

In this lesson, students continue their investigation by discovering a rule to predict the pocket in which the ball will land. As an extension, students can also consider the number of squares that a ...
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Wrapping It Up

Least common multiple (Math 5) 
Java Applet 
Lesson Plan 

[0]

In the first four lessons of this unit, students investigated the Paper Pool game, collected data, identified patterns, and made predictions about the number of hits, the pocket in which the ball land...
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Red vs. Blue

Prime (Math 5)+ 
Presentation software 
Lesson Plan 

[0]

Give students practice with multiplication, factoring, and prime and composite numbers through an exciting game  a game that exposes students to one of the great unsolved problems of mathematics.
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Number Worlds: Visual and expe...

Number theory (Math 5) 
Computer 
Support Material 

[1]

Recent research demonstrates that many issues related to the structure of natural numbers and the relationship among numbers are not well grasped. In this article, the computerbased learning environm...
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Factors, Primes, and Factoriza...

Prime factorization (Math 5) 
Flash 
Support Material 

[0]

This interactive multimedia tutorial explores prime numbers and factors, without the use of division per se.
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