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Technology 
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Truth Tables in Three Variable...

Truth tables (Discrete Math) 
Flash 
Tool 

[0]

This set of problems consists of a handful of randomly selected expressions for which the user must provide a truth table. The statements use "and", "or", "not", and implication as logical connectives...
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Truth Tables in Three Variable...

Truth tables (Discrete Math) 
Flash 
Tool 

[0]

A set of problems in which the user is given a propositional expression along with the subexpressions leading up to it in building the truth table.
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Affine Recurrence Plotter

Recurrence relations (Discrete Math)+ 
Java Applet 
Tool 

[0]

This tool is a customized spreadsheet that is preloaded so that the user can numerically investigate affine recurrence relations. By using the File menu the user can also create a new spreadsheet. It ...
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Apportionment: Webster's Metho...

Apportionment methods (Discrete Math) 
Java Applet 
Tool 

[0]

An interactive demonstration of Webster's Method of Apportionment, a method of deciding the number of representatives a state should have, based on its population. Number of states and the number of s...
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Ball Mixing Activity: 6 Balls ...

Counting possibilities (Discrete Math)+ 
Java Applet 
Tool 

[0]

We have 6 balls3 reds and 3 greens. We drop them randomly into 3 boxes.
What combinations are possible? Use this applet to experiment.
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Coin Problem

Logical Form & Equivalence (Discrete Math) 
Java Applet 
Tool 

[5]

Use deduction to find the lighter coin.
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Coin Problem (tPoW version)

Logical Form & Equivalence (Discrete Math) 
Java Applet 
Tool 

[1]

Use deduction to find the lighter coin.
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Conways Game of Life

Recursion (Discrete Math)+ 
Java Applet 
Tool 

[2]

Discover the rules that determine change in these simulations.
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Fair Division: Method of Lone ...

Fair division (Discrete Math) 
Java Applet 
Tool 

[0]

An interactive tool for the study and implementation of the Lone Divider method, in which one player divides the goods into pieces and each player states which piece they would accept as a fair share....
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Fair Division: Method of Marke...

Fair division (Discrete Math) 
Java Applet 
Tool 

[0]

An interactive illustration of the Method of Markers, a method for fairly dividing a linear object such as a gold chain or a string of identical diamonds. User definable number of players, and, for ea...
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Fair Division: Method of Seale...

Fair division (Discrete Math) 
Java Applet 
Tool 

[0]

An interactive illustration of the method of sealed bids for fairly dividing a number of distinct items among a number of players. The number of players is user definable as is the number of the aucti...
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Fill and Pour

Logical Form & Equivalence (Discrete Math) 
Java Applet 
Tool 

[3]

Fill a glass with the requested amount of liquid by filling, emptying, and pouring between it and a second container. Click the "New Problem" button to generate new parameters; "Challenge" creates con...
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Mastermind

Logical Form & Equivalence (Discrete Math) 
Java Applet 
Tool 

[2]

This virtual manipulative is a version of the classic Mastermind game of logic. Win the game by discovering the colors of the four peg solution.
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Pascals Triangle

Permutations vs. combs. (Discrete Math)+ 
Java Applet 
Tool 

[2]

Pascal's triangle is a triangular arrangement of numbers corresonding to the probabilities involved in flipping coins, or the number of ways to choose n objects from a group of m indistinguishable obj...
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Peg Puzzle

Logical Form & Equivalence (Discrete Math) 
Java Applet 
Tool 

[1]

This virtual manipulative is the classic logic peg puzzle. The goal of the puzzle is to switch the the pegs on the left with the pegs on the right by moving one peg at a time.
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Point Plotter  Polar  gCalcD

General (Discrete Math) 
Java Applet 
Tool 

[0]

Plot point sets in polar coordinate system. Drag the graphs and rotate the axes.
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Power indices

Social Choice and Voting Theory (Discrete Math) 
Java Applet 
Tool 

[0]

Fast computation of the Banzhaf and ShapleyShubik Power Indices, ranking the power of members of a voting body. The tool provides several sample distributions: European Union, US Electoral College fo...
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Predator Prey

Applications (Discrete Math)+ 
Java Applet 
Tool 

[1]

This applet demonstrates a predatorprey growth model for the number of Foxes and Rabbits in a region given user input for the initial populations F_0 and R_0 and the Growth Rate for the Rabbit popula...
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Pythagorean Theorem

Proofs (Discrete Math) 
Java Applet 
Tool 

[3]

This virtual manipulative allows you to walk through a visual proof of the Pythagorean theorem. Before beginning the proof, recall that the pythagorean theorem is: c^2 = a^2 + b^2
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Shape Sorter Tool

Venn diagrams (Discrete Math) 
Java Applet 
Tool 

[1]

Shapes have many different properties such as the lengths of their sides, measures of interior angles, and symmetry. This tool allows the user to use a Venn diagram model to sort shapes based on their...
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Social Choice

Voting methods (Discrete Math) 
Java Applet 
Tool 

[0]

The applet presents four methods of ranking candidates based on voters' preferences: Plurality, Borda, Plurality with Elimination, and Pairwise Comparison of alternatives. The numbers of candidates an...
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Tower of Hanoi

Recurrence relations (Discrete Math)+ 
Java Applet 
Tool 

[2]

Solve the Tower of Hanoi problem with different levels and see an explanation of the recursion relationship involved.
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Tower of Hanoi

The towers of Hanoi (Discrete Math) 
Java Applet 
Tool 

[1]

The Tower of Hanoi puzzle was invented by the French mathematician Edouard Lucas in 1883. The goal is to move all the discs from the left peg to the right one. Try to move all the discs from one side...
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Towers of Hanoi

The towers of Hanoi (Discrete Math) 
Java Applet 
Tool 

[3]

Solve the tower problem and test your theory by varying the number of disks.
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Trout Population Grapher

Recurrence relations (Discrete Math)+ 
Java Applet 
Tool 

[0]

The user can change the values of the initial population size, the yearly restocking amount, and the growth factor of the trout population in a pond, and then view the graph of the population size.
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