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Working with Place Value

Large numbers (Math 4) 
Java Applet 
Activity 

[2]

Guided, interactive activities help students understand the concept of place value, using the number line, base blocks, and place value charts.
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Working with Place Value

Large numbers (Math 4) 
Java Applet 
Lesson Plan 

[1]

Guided, interactive activities help students understand the concept of place value, using the number line, base blocks, and place value charts. Teacher information includes a list of targeted objectiv...
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Millions and Billions

Large numbers (Math 4) 
JavaScript 
Support Material 

[0]

Examples and illustrations of large numbers to demonstrate that a billion is 1000 times as large as a million.
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Touch decimals Place value ±

Large numbers (Math 4) 
Android 
Tool 

[0]

This touch decimal app has a double interactive place value chart, with up to 40 decimal columns. It is a mathematical analogy with positive and negative tokens. It is designed to:

Estimating Whole Numbers and D...

Large numbers (Math 4) 
Computer 
Tool 
$ 
[0]

Alterable worksheet in which students estimate the positions of points on unmarked number lines, on the intervals [0, 100], [0,1000], [10, 0], [100, 0]. Fee required for printing: see this page.
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Estimating Whole Numbers and D...

Large numbers (Math 4) 
Computer 
Tool 
$ 
[0]

Alterable worksheet in which students estimate the positions of points on unmarked number lines, on the intervals [0, 1], [0, 100], [0, 1000], [0, 10000], [10, 10], [100, 0]. Fee required to print;...
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Comparing Numbers

Large numbers (Math 4) 
Flash 
Tool 

[0]

This module introduces place value, place holders, comparing numbers and using the inequality signs > and < through fact sheets, worksheets, and a game. The accompanying quiz offers three levels of di...
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Infinity

Large numbers (Math 4) 
Flash 
Tool 

[0]

In this exercise, you see a number "on the path" to infinity. If you see a larger number, that is, closer to infinity, in one of the balloons surrounding infinity, click that number, and it will take ...
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Writing Big Numbers

Large numbers (Math 4) 
Flash 
Tool 

[0]

The aim of this module is to review large numbers, practice writing numbers as words, and as a reminder of place value. The module includes factsheets, worksheets, an activity, and a game.
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Base Blocks

Large numbers (Math 4) 
Java Applet 
Tool 

[10]

Illustrate addition and subtraction in a variety of bases.
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Graph of the US Income Distrib...

Large numbers (Math 4) 
JavaScript 
Tool 

[2]

Interact with a graph displaying family income across the population using a football field as the context. The height of the curve at any point is the height of a stack of $100 bills equaling that in...
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Modular Arithmetic Lesson

Number sense (Math 4) 
Java Applet 
Activity 

[1]

Clock (or modular) arithmetic is arithmetic you do on a clock instead of a number line. Investigate arithmetic using a 12hour, 10hour, and 2hour clock.
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SMILE Mathematics Activity

Number sense (Math 4) 
TI73 Explorer 
Activity 

[0]

Stepbystep directions on how to use the the five SMILE Mathematics computer games: MiniMax, Box, Matching Fractions, Angle, and Rhino.
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Clock Arithmetic and Cryptogra...

Number sense (Math 4) 
Java Applet 
Lesson Plan 

[2]

The following discussions and activities are designed to lead the students to practice their basic arithmetic skills by learning about clock arithmetic (aka modular arithmetic) and cryptography.
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Clocks and Modular Arithmetic ...

Number sense (Math 4) 
Java Applet 
Support Material 

[0]

A dialogue between a student and a mentor on the relationship between clocks and modular arithmetic.
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Cryptography and Ciphers Dialo...

Number sense (Math 4) 
Java Applet 
Support Material 

[0]

A dialogue between a student and a mentor on the relationship between cryptography and ciphers.
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What are Remainders Dialogue

Number sense (Math 4) 
Java Applet 
Support Material 

[0]

A dialogue between a student and a mentor about remainders.
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Touch Integers ℤ (+  × ...

Number sense (Math 4) 
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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5Tile Jigsaw Puzzle

Number sense (Math 4) 
Flash 
Tool 

[0]

The goal of this game is to reassemble the tiles in a square grid, in repeated numerical sequence.
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Compare Numbers

Number sense (Math 4) 
Flash 
Tool 

[0]

Compare number size and place the greater or less than sign in the correct place. Use your choice of three levels of numbers to 100, 1000, or to 10000.
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Number Grid Level 3

Number sense (Math 4) 
Flash 
Tool 

[1]

Third level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a change...
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Number Grid Level 4

Number sense (Math 4) 
Flash 
Tool 

[1]

Fourth level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a chang...
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Number Grid Level 5

Number sense (Math 4) 
Flash 
Tool 

[4]

Fifth level in a collection of five Number Grid activities. It displays a section of a matrix containing a set of consecutive whole numbers. A move from one number to the next within a row is a change...
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Number Puzzle

Number sense (Math 4) 
Flash 
Tool 

[0]

Change the numbers in the blocks at the bottom of the pyramids and explore the effect on the number in the top block. What's the highest total you can get using the numbers 1 to 5 only once?
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Number Track

Number sense (Math 4) 
Flash 
Tool 

[0]

Place the number tiles into the correct order on the track. There are three levels of difficulty, with an option to make your own number track arrangements.
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