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Technology 
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Modular Arithmetic Lesson

Operations with numbers (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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Calculator Lesson on Problem S...

Operations with numbers (Math 3) 
TI10 
Lesson Plan 

[0]

Using this activity students develop proper care of the calculator; explore the TI10 calculator and learn about some of the functions; use the problemsolving key to solve Level 1 problems.
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Clock Arithmetic and Cryptogra...

Operations with numbers (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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Magic Squares

Operations with numbers (Math 3) 
Java Applet 
Lesson Plan 

[0]

Designed primarily for middle school and older elementary school students, this Math Forum Web unit includes classroom activities for four different squares: Lo Shu, Sator, Durer, and Franklin, three ...
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Operations with Integers

Operations with numbers (Math 3) 
Computer 
Lesson Plan 

[1]

Lesson plan and tutorial for the shareware program, Math Stars, by Roger Clary. Includes ideas for introducing integers even if the software is not used.
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Pattern Block Fractions

Operations with numbers (Math 3) 
Java Applet 
Lesson Plan 

[0]

This lesson focuses on the identification of fractional parts of a region and records them in standard form. Students continue to develop communication skills by working together to express their unde...
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Addition Worksheets Story

Operations with numbers (Math 3) 
JavaScript 
Story 

[0]

Jeff LeMieux, writes about how he uses the Javascript page, Addition Worksheets for whole number addition of selectable length numbers.
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Multiplication Worksheets Stor...

Operations with numbers (Math 3) 
JavaScript 
Story 

[0]

Jeff LeMieux, writes about how he uses the JavaScript page, Multiplication Worksheets.
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Subtraction Worksheets Story

Operations with numbers (Math 3) 
JavaScript 
Story 

[0]

Jeff LeMieux, writes about how he uses the Javascript page, Subtraction Worksheets.
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Clocks and Modular Arithmetic ...

Operations with numbers (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...

Operations with numbers (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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Integers

Operations with numbers (Math 3) 
Computer 
Support Material 

[1]

An illustrated collection of explanations, with questions for students to work out and submit for automatic feedback.
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TeachingTools.com

Operations with numbers (Math 3) 
Computer 
Support Material 
$ 
[1]

TeachingTools.com contains a series of online "tools" enabling you to quickly generate an almost infinite number of math (and other subjects) worksheets and their answer keys.
You can then choose to...
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What are Remainders Dialogue

Operations with numbers (Math 3) 
Java Applet 
Support Material 

[0]

A dialogue between a student and a mentor about remainders.
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Abacus

Operations with numbers (Math 3) 
Java Applet 
Tool 

[1]

An electronic abacus that can be used to do arithmetic.
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Abacus v1.4

Operations with numbers (Math 3) 
Java Applet 
Tool 

[1]

The Abacus Java Applet/Application is an implementation of an Abacus counting machine. The machine displays a total for the number represented by the machine's current state in addition to each digits...
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Arithmetic Four

Operations with numbers (Math 3) 
Java Applet 
Tool 

[3]

This activity allows the user to practice addition, subtraction, multiplication, and division.
...
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Aritmética cuatro

Operations with numbers (Math 3) 
Java Applet 
Tool 

[0]

Un juego parecido a Fracción Cuatro, pero en vez de preguntas acerca de fracciones, el jugador tiene que responder preguntas sobre aritmética (suma, resta, multiplicación y división) para ganarse u...
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Aritmética del reloj

Operations with numbers (Math 3) 
Java Applet 
Tool 

[0]

Los estudiantes aprenden operaciones de aritmética modular trabajando con diferentes tipos de relojes. Parámetros: Número de horas en el reloj.
versión en inglés
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Base 10 Addition Mathlets

Operations with numbers (Math 3) 
JavaScript 
Tool 

[0]

The idea for the one, two, and three place addition mathlets is to show the steps in the base ten addition procedure in conjunction with a model. Each time the mathlet is run (by clicking the "New" b...
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Base 10 Blocks

Operations with numbers (Math 3) 
Java Applet 
Tool 

[0]

This program consists of a panel, as shown on the right, where one can click on any of three different block sizes that represent 1 unit, 10 units, and 100 units and drag them into the working pane...
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Big Blue Calculator

Operations with numbers (Math 3) 
Flash 
Tool 

[1]

Use the Big Blue Calculator on an interactive whiteboard to show students how the calculator works. The display can be hidden using the button at its lower left corner.
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Bowling

Operations with numbers (Math 3) 
Excel 
Tool 

[0]

Students learn to calculate their bowling score.
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Broken Calculator

Operations with numbers (Math 3) 
Flash 
Tool 

[2]

Eric's calculator has lost most of its keys. Can you find a way for the leftover keys to generate the target numbers?
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Caesar Cipher

Operations with numbers (Math 3) 
Java Applet 
Tool 

[0]

Students practice simple arithmetic skills by encoding and decoding messages using an affine cipher.
Spanish version also available.
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