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Resource Name 
Topic (Course) 
Technology 
Type 
$? 
Rating 

Base Blocks Subtraction

Subtraction (Kindergarten) 
Java Applet 
Tool 

[6]

Base blocks consist of individual units, longs (containing 10 units), flats (containing 10 longs), and blocks (containing 10 flats) and can be used to show place value for numbers and to increase unde...
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Base Blocks Addition

Addition (Kindergarten) 
Java Applet 
Tool 

[6]

Use base ten blocks to model grouping in addition.
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Building Houses Activity

Operations with numbers (Kindergarten) 
Java Applet 
Activity 

[1]

Students count, order, and compare the different sizes of integer bars as they make house designs using the Integer Bar applet by Jacobo Bulaevsky.
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Episode 8: Subtraction

Subtraction (Kindergarten) 
Flash 
Lesson Plan 

[1]

Activities to introduce the concept of subtraction as the inverse of addition.
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Math Tablet

Operations with numbers (Kindergarten) 
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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First Grade Splash Math [HD Fu...

Operations with numbers (Kindergarten) 
iPad 
Tool 
$ 
[1]

Splash Math HD is the full version of this app with 13 chapters covering over 185 math skills and a supply of problems appropriate for first grade students.
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Count Us In: Game 7

Addition (Kindergarten) 
Flash 
Tool 

[12]

The bus number tells you how many children you should put on the bus. Click and drag the children, in as many different ways as you can. When they are sitting down, click "check number" to make the bu...
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Base Blocks

Operations with numbers (Kindergarten) 
Java Applet 
Tool 

[10]

Illustrate addition and subtraction in a variety of bases.
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Five Frame

Addition (Kindergarten) 
Java Applet 
Tool 

[4]

In this interactive fiveframes tool, users practice counting and adding to ten. The frames help users think of numbers in relation to 5.
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PrimaryPaths

Operations with numbers (Kindergarten) 
JavaScript 
Tool 

[3]

PrimaryPaths (which replaced the PrimaryMath.org site) provides interactive educational tools that teachers and parents can use to make learning easier. Our website provides interactive arithmetic pr...
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Let's Count

Addition (Kindergarten)+ 
JavaScript 
Tool 

[3]

This site features counting activities with the numbers from one to ten. The activities give preK to grade 1 students practice in counting, using both symbols and names of the numbers. In the activiti...
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Number Line Arithmetic

Addition (Kindergarten)+ 
Java Applet 
Tool 

[1]

Illustrates arithmetic operations using a number line.
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Episode 7: Addition

Addition (Kindergarten) 
Flash 
Lesson Plan 

[8]

Activities to explore addition of numbers up to 12.
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Hiding Ladybug

Estimation (Kindergarten) 
Java Applet 
Tool 

[1]

The threepart ladybug example presents a rich computer environment in which students can use their knowledge of number, measurement, and geometry to solve interesting problems. Planning and visualizi...
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Turkey Feathers

Addition (Kindergarten) 
Flash 
Tool 

[2]

Help the turkey collect his feathers in this addition game.
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Grouping and Grazing

Addition (Kindergarten)+ 
Computer 
Tool 

[1]

Help the alien spaceship move cows into corrals by counting, adding, and subtracting. This activity helps children learn grouping, tally marks, and place value. As they master counting, they can move ...
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Arithmetic Quiz

Addition (Kindergarten)+ 
Java Applet 
Tool 

[1]

This activity allows the user to practice addition, subtraction, multiplication, and division, with variable difficulty, type of problem, and time allowed. Scoring is also an option.
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Balancing

Addition (Kindergarten)+ 
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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Fact Families

Operations with numbers (Kindergarten) 
Computer 
Lesson Plan 

[0]

In this lesson, the relationship of addition to subtraction is explored with books and with connecting cubes. Students search for related addition and subtraction facts for a given number using a virt...
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KenKen for Younger Learners

Operations with numbers (Kindergarten) 
iPad 
Lesson Plan 

[0]

Use KenKen puzzles to improve arithmetic and reasoning skills. Students will:

Math Cruncher

Addition (Kindergarten)+ 
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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Whole Calculator

Addition (Kindergarten)+ 
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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Touch Integers ℤ (+  × ...

Operations with numbers (Kindergarten) 
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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Estimating Whole Numbers and D...

Estimation (Kindergarten) 
Computer 
Tool 
$ 
[0]

Alterable worksheet allows students to estimate the location of points on unmarked number lines, on the intervals [0, 50] and [0, 100]. Fee required to print: see this page.
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How Many Under the Shell?

Addition (Kindergarten)+ 
Computer 
Tool 

[0]

After Okta hides some bubbles under a shell, he then either adds more bubbles or takes some away. Students determine how many bubbles are left under the shell.
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