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Technology 
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Bead Numbers

Place value (Math 3) 
Flash 
Activity 

[0]

This activity uses an interactive abacus to help develop and reinforce pupils' understanding of place value. The abacus has three pegs onto which beads are dropped, representing units, tens, and hundr...
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Modular Arithmetic Lesson

Number sense (Math 3) 
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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Working with Place Value

Place value (Math 3) 
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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Clock Arithmetic and Cryptogra...

Number sense (Math 3) 
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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Working with Place Value

Place value (Math 3) 
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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Clocks and Modular Arithmetic ...

Number sense (Math 3) 
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 3) 
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 3) 
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 3) 
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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Touch Natural Numbers

Place value (Math 3) 
Android 
Tool 

[0]

With this app you can:

Touch decimals Place value ±

Place value (Math 3) 
Android 
Tool 

[1]

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:

Whole Calculator

Place value (Math 3) 
Android 
Tool 

[0]

This app functions as a calculator for the set of the natural numbers (N). Type the numerical operations and view the both inputs and the result in words.
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Write the Correct Numbers in t...

Place value (Math 3) 
Computer 
Tool 
$ 
[0]

Alterable worksheet in which students fill in blanks, adding and subtracting in powers of ten. Fee required to print: see this page.
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5Tile Jigsaw Puzzle

Number sense (Math 3) 
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 3) 
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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Comparing Numbers

Place value (Math 3) 
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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DigitWize

Place value (Math 3) 
Flash 
Tool 

[0]

Choose integers or numbers with decimal places, then try to make up the target number by choosing numbers from the units, tens, hundreds, depending on your original choice. Available in Arabic, Bengal...
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Gold Coin Game

Number sense (Math 3) 
Flash 
Tool 

[0]

Divide the coins evenly between all the Leprechaun pots.
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Guess My Number 1100

Number sense (Math 3) 
Flash 
Tool 

[0]

A guessing game to find out what number the computer is thinking of. The activity can be used to develop number recognition and sequencing up to 100.
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Infinity

Number sense (Math 3) 
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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Number Grid Level 1

Number sense (Math 3) 
Flash 
Tool 

[1]

First 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 2

Number sense (Math 3) 
Flash 
Tool 

[3]

Second 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 3

Number sense (Math 3) 
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 3) 
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 3) 
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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