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Topic (Course) 
Technology 
Type 
$? 
Rating 

Number Base Clocks

Number sense (Math 5)+ 
Java Applet 
Tool 

[0]

Visually explore counting and place value with different number bases, from base 2 to base 16, and up to the hundreds place using a clock like interface. The activity also allows you to look at the nu...
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NumberWorlds

Number sense (Math 6)+ 
Java Applet 
Tool 

[1]

With this applet, students can investigate various properties of numbers including patterns of even, odd, square and prime numbers, as well as multiples and factors. There are also different "worlds" ...
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Building Houses

Number sense (PreKindergarten)+ 
Java Applet 
Lesson Plan 

[0]

Students count, order, and compare the different sizes of integer bars as they make house designs.
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Concentration

Number sense (PreKindergarten)+ 
Java Applet 
Tool 

[1]

With this tool, users play a game like Concentration and match cards that show different representations of the same numbers.
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Ask Dr. Math FAQ: Prime Number...

Number theory (Math 3)+ 
Java Applet 
Support Material 

[0]

Answers to the frequently asked questions including: What is a prime number? How can you find prime numbers? What's the Sieve of Eratosthenes? What's the largest known prime?
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Sieve of Eratosthenes

Number theory (Math 3)+ 
Java Applet 
Tool 

[0]

This virtual manipulative displays a grid containing numbers from 1 to 200. You can use it to explore patterns and relationships involving multiples.
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Containers

Number theory (Math 4)+ 
Java Applet 
Technology PoW 

[1]

Use two measuring cups of a particular size to figure out how to measure out other quantities.
NOTE: A free login is required. Sign up using the link on the login page, or use your...
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The Hispaniola Water Shortage

Number theory (Math 4)+ 
Java Applet 
Tool 

[0]

Students are asked to use virtual containers of water, of definite sizes, and combine them in various ways to come up with as many different resulting volumes as possible.
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The Hispaniola Water Shortage ...

Number theory (Math 4)+ 
Java Applet 
Activity 

[0]

Gives students an introduction to number theory by emphasizing the significance of starting with containers of different parity, as compared to containers of the same parity. Some implied work with mo...
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The Hispaniola Water Shortage ...

Number theory (Math 4)+ 
Java Applet 
Lesson Plan 

[0]

Links to Standards, activities, lessons, Ask Dr. Math archives, vocabulary, other resources.
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Number Works Applet

Number theory (Math 5)+ 
Java Applet 
Tool 

[0]

This applet calculates numbers, such as prime numbers, prime factors, least common multiple (LCM), greatest common divisor (GCD) or also called highest common factor (HCF), ratio simplifications. The ...
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Numerical Integration: Trapezo...

Numeric Approx. to Def. Ints. (Calculus) 
Java Applet 
Tool 

[0]

Graphs the function you enter and the area under the curve, and calculates this area according to the Trapezoid Rule and Simpson's Rule.
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Riemann Sums, Simpson's Rule

Numeric Approx. to Def. Ints. (Calculus) 
Java Applet 
Tool 

[2]

Applet demonstrating different methods of numerical integration. Right, Left, Midpoint, and Trapezoidal approximations are available, as is Simpson's Rule. A function of your choice can be entered.
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Euclid's Elements, Book I, Def...

Obtuse (Geometry)+ 
Java Applet 
Tool 

[1]

Gives Euclid's original definitions of obtuse and acute angles and then examines the definitions' validity and durability. To reset the applet, press "r" while your cursor is over the diagram.
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Euclid's Elements, Book II, Pr...

Obtuse (Geometry) 
Java Applet 
Tool 

[0]

Euclid's proposition states properties about the sides and angles of obtuse triangles. The guide then examines the structure of the proposition. To reset the applet, press "r" while your cursor is ov...
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Explore logarithmic functions

One Variable Equations (Algebra) 
Java Applet 
Tool 

[1]

Graph a logarithmic function and vary the base and coefficients.
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Use constants in mathematical ...

One Variable Equations (Algebra) 
Java Applet 
Tool 

[1]

Enter a function, then vary each of the coefficients and watch the function change.
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Abacus v1.4

Operations with numbers (Math 1)+ 
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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Base 10 Blocks

Operations with numbers (Math 1)+ 
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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Abacus

Operations with numbers (Math 3)+ 
Java Applet 
Tool 

[1]

An electronic abacus that can be used to do arithmetic.
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Arithmetic Four

Operations with numbers (Math 3)+ 
Java Applet 
Tool 

[5]

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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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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Caesar Cipher II

Operations with numbers (Math 3)+ 
Java Applet 
Tool 

[0]

Students practice simple arithmetic skills by encoding and decoding messages to determine the form for an affine cipher.
Spanish version also available.
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