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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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Pascal's Triangle

Pascal's triangle (Math 5) 
Flash 
Support Material 

[0]

This Math Images page catalogs an image of Pascal's Triangle along with a basic description, mathematical explanations, and references.
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Ask Dr. Math FAQ: Prime Number...

Number theory (Math 5) 
Java Applet 
Support Material 

[0]

Answers to the frequently asked questions including: What is a prime number? How can you find prime numbers? What's the Sieve of Eratosthenes? What's the largest known prime?
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Ask Dr. Math: FAQ: Learning to...

Factor (Math 5) 
Java Applet 
Support Material 

[1]

Students regularly ask Doctor Math questions about how to factor. Here are some answers from the archives.
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Ask Dr. Math: FAQ: Pascal's Tr...

Pascal's triangle (Math 5) 
Java Applet 
Support Material 

[0]

Answers to the frequently asked questions: What is Pascal's Triangle? How do you construct it? What is it used for?
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Pascal's Triangle Dialogue

Pascal's triangle (Math 5) 
Java Applet 
Support Material 

[0]

A dialogue between a student and a mentor about Pascal's Triangle.
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What are Multiples Discussion

Multiple (Math 5) 
Java Applet 
Support Material 

[0]

Discusses integer multiples as repeated addition.
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Touch Integers ℤ (+  × ...

Number theory (Math 5) 
Android 
Tool 

[0]

The fundamental theorem of arithmetic, also known as the unique factorization theorem or the uniqueprimefactorization theorem, states that every integer greater than 1 either is prime itself or is t...
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