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Technology 
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9 digits

Addition (Math 2) 
Android 
Tool 

[0]

This is a puzzle with 9! possibilities and 336 solutions. The problem posed in 9 digits consists in the organization of the numbers 1 to 9 in a square of 3 * 3 to make the sum of the numbers of the fi...
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Adding Unit Fractions

Fractions (Math 2) 
Android 
Tool 

[0]

Get the proper fractions listed at the top of the application, adding two or three unit fractions. Each proposed proper fraction has a variable number of solutions and different levels of difficulty. ...
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Dyscalculator  Android

General (Math 2) 
Android 
Tool 

[0]

This calculator app made its first public demonstration last month at the 12th International Congress on Mathematical Education (ICME). Designed to help dyscalculics, Dyscalculator shows quantities in...
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Fractions Balance

Fractions (Math 2)+ 
Android 
Tool 

[0]

Usually in elementary mathematics, pan scale balances are used only to display at the time of equilibrium in order to verify that two quantities are equivalent.
In this case, apart from that use, it ...
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Game about Squares [Android]

General (Math 2) 
Android 
Tool 

[0]

A puzzle game with 20 levels. Tap to move the square. Move all of the squares over their corresponding dots to win the game.
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Kids Measurement Science Lite

Length/height (Math 2)+ 
Android 
Tool 

[0]

Young scientists learn to analyze the physical world by measuring across a variety of domains  time, size, weight and money. 58 year old kids measure length, weight, time and money in this science a...
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Math Cruncher

Addition (Math 2)+ 
Android 
Tool 

[0]

Features of Math Cruncher include,
* solving simple equations before they hit the ground
* solving the bonus equations to help yourself survive in the game and reach the highest score.
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Math Garden

Addition (Math 2)+ 
Android 
Tool 

[0]

In this app, the natural numbers are represented as plants:
If two unseeded seeds overlap, they add up.
If two seeds are planted, the plants multiply.
The plants are structured in branc...
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Math Tablet

Operations with numbers (Math 2)+ 
Android 
Tool 
$ 
[1]

This is a virtual manipulative to support developing number sense and arithmetic concepts. Two subquantities together result in a new total quantity. This is called addition. And if you take away a s...
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Ninedigits workshop

Addition (Math 2) 
Android 
Tool 
$ 
[0]

Puzzle with 9! possibilities and 336 solutions. The problem posed in Ninedigits workshops consists in the organization of the numbers 1 to 9 in a square of 3 * 3 to make the sum of the numbers of the...
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Old Egyptian Fractions

Fractions (Math 2) 
Android 
Tool 
$ 
[0]

This is the android version of the Mathcats Old Egyptian Fractions:
Old Egyptian Math Cats knew fractions like 1/2 or 1/4 (one piece of a pie).
But to make fractions like 3/4, they had to add pi...
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Old Egyptian Fractions for And...

Fractions (Math 2) 
Android 
Tool 

[0]

This is the Android version of the Mathcats Old Egyptian Fractions:
Old Egyptian Math Cats knew fractions like 1/2 or 1/4 (one piece of a pie).
But to make fractions like 3/4, they had to add pi...
More: lessons, discussions, ratings, reviews,...

Proper Fractions

Fractions (Math 2) 
Android 
Tool 

[0]

Use this tool to explore equivalent fractions, the Ahmes 2/n table of the RMP, and/or the table shown in the Akhmim Papyrus.
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Reading Fractions

Fractions (Math 2) 
Android 
Tool 

[0]

This app lets you view fractions represented in the form of overlapping circles and bars. The two graphs are interactive. They can be changed by dragging on the screen.
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Time Calculator

Measurement (Math 2)+ 
Android 
Tool 

[0]

With the Time Calculator you can calculate the difference between two dates. You can set a date in the past and subtract it from the present time and the result will be the elapsed time. Also, you can...
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Touch Fraction

Fractions (Math 2) 
Android 
Tool 

[0]

Touch Fraction lets you visualize positive and negative
fractions  and zoom into equivalent fractions using the
rational representation diagram.
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Touch Integers ℤ (+  × ...

Operations with numbers (Math 2)+ 
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 2) 
Android 
Tool 

[0]

With this app you can:

Touch decimals Place value ±

Addition (Math 2)+ 
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

Addition (Math 2)+ 
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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Two Less Than  PDA version

Mental math (Math 2)+ 
Calculator 
Tool 

[2]

Select the number that is "two less than" the highlighted number.
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#NoticeWonder Love

General (Math 2) 
Computer 
Story 

[0]

Annie tells the story of using Game About Squares to help students develop and strengthen their mathematical habits of mind. After they had played the game for a while, she had them reflect on the str...
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2nd grade math worksheets

General (Math 2)+ 
Computer 
Activity 

[0]

This site contains 2nd grade math worksheets and lessons free of charge. Most of the 2nd grade math topics are separated in the different sections of the site.
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Balancing

Addition (Math 2)+ 
Computer 
Lesson Plan 

[0]

This lesson encourages students to explore another model of subtraction, the balance. This model leads naturally to recording with equations. Students use actual and virtual pan balances in their expl...
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Broadmeadow Maths Trail

Counting (Math 2)+ 
Computer 
Tool 

[0]

This is a photographic maths trail: a series of activities based on the physical environment around Broadmeadow School in the United Kingdom.
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