** Arithmetic Four**

A game like Fraction Four but instead of fraction questions the player must answer arithmetic questions (addition, subtraction, multiplication, division) to earn a piece to place on the board.

** Arithmetic Quiz**

Arithmetic Quiz gives the user randomized questions to answer on arithmetic with whole numbers and integers.

** Bounded Fraction Pointer **

The user gives the values for the fractional points on the number line.

** Bounded Fraction Finder **

the computer gives the values for the fractional points on the number line.

** Caesar Cipher**

Students practice simple arithmetic skills by encoding and decoding messages using an affine cipher.

** Cantor's Comb**

Students learn about fractions between 0 and 1 by repeatedly deleting portions of a line segment, also learning about properties of fractal objects.

** Clock Arithmetic**

Students learn about modular arithmetic operations through working with various types of clocks.

** Coloring Multiples in Pascal's Triangle**

Students color numbers in Pascal's Triangle by rolling a number and then clicking on all entries that are multiples of the number rolled, thereby practicing multiplication tables, investigating number patterns, and investigating fractal patterns.

** Coloring Remainders in Pascal's Triangle**

Students color numbers in Pascal's Triangle by rolling a number and then clicking on all entries that have the same remainder when divided by the number rolled, thereby practicing multiplication tables, investigating number patterns, and investigating fractal patterns.

** Comparison Estimator**

Compares two sets of objects.

** Converter**

Converts fractions to decimals and decimals to fractions.

** Equivalent Fractions Finder**

Visually represent equivalent fractions by dividing squares or circles and shading portions equivalent to a given fraction.

** Estimator**

Practice estimation skills by determining the number of objects, length, or area.

** Estimator Quiz**

Randomized questions to answer on estimating the value of number sentences.

** Factorize**

** Factorize 2**

Learn about factors through building rectangular arrays on a grid.

** Fraction Finder**

Determine the value of two given fractions represented as points on a number line then graphically find a fraction whose value is inbetween the value of the 2 given fractions and determine its value.

** Fraction Four**

A version of connect four, gaining the chance to place a piece on the board by simplifying a fraction.

** Fraction Quiz**

Fraction Quiz gives the user randomized questions to answer on simplifying fractions; conversions between fractions, decimals, percents, and percentage problems.

** Fraction Sorter**

Represent fractions by coloring in the appropriate portions of either a circle or a square, then order those fractions from least to greatest.

** Pattern Generator**

Determine and then continue the pattern generated.

** Tortoise and Hare Race**

Students step through the tortoise and hare race, based on Zeno's paradox, to learn about the multiplication of fractions and about convergence of an infinite sequence of numbers.

** Whole Number Cruncher**

Similar to "Number Cruncher" but only generates multiplication and addition functions to avoid outputting any negative numbers.

** Angles**

Students practice their knowledge of acute, obtuse and alternate angles.

** Area Explorer**

Students are shown shapes on a grid after setting the perimeter and asked to calculate areas of the shapes.

** Clock Wise**

Practice reading a clock.

** Elapsed Time**

Practice finding elapsed time given a starting time and an ending time.

** Fractured Pictures**

Students generate complicated geometric fractals by specifying starting polygon and scale factor.

** Perimeter Explorer**

Students are shown shapes on a grid after setting the area and asked to calculate perimeters of the shapes.

** Pythagorean Explorer**

Students find the length of a side of a right triangle by using the Pythagorean Theorem, and then check their answers.

** Surface Area and Volume**

Students manipulate dimensions of polyhedra, and watch how the surface area and volume change.

** Algebra Four**

Students play a generalized version of connect four, gaining the chance to place a piece on the board by solving an algebraic equation.

** Algebra Quiz**

Similar to Algebra Four, Algebra Quiz gives the user randomized questions to answer on solving algebraic linear and quadratic equations of one variable.

** Fraction Quiz**

Fraction Quiz gives the user randomized questions to answer on simplifying fractions; conversions between fractions, decimals, percents, and percentage problems.

** Function Flyer**

This activity allows the manipulation of the constants and coefficients in any function thereby encouraging the user to explore the effects on the graph of the function by changing those numbers.

** Function Machine**

Students investigate very simple functions by trying to guess the algebraic form from inputs and outputs.

** General Coordinates Game**

Students investigate the Cartesian coordinate system through identifying the coordinates of points, or requesting that a particular point be plotted.

** Graph Sketcher**

Students can create graphs of functions by entering formulas -- similar to a graphing calculator.

** Graphit**

Students can graph functions and sets of ordered pairs on the same coordinate plane.

** Linear Function Machine**

Students investigate linear functions by trying to guess the slope and intercept from inputs and outputs.

** Ordered Simple Plot**

nother version of "Simple Plot" which allows the user to plot and connect ordered pairs in the order that they are input. This enables pictures to be drawn by connecting the pairs rather than having the computer connect them from left to right.

** Positive Linear Function Machine**

Students investigate linear functions with positive slopes by trying to guess the slope and intercept from inputs and outputs.

** Simple Coordinates Game**

Students investigate the first quadrant of the Cartesian coordinate system through identifying the coordinates of points, or requesting that a particular point be plotted.

** Simple Plot**

Students can plot ordered pairs of numbers, either as a scatter plot or with the dots connected.

** Dice Table**

Students experiment with the outcome distribution for a roll of two dice by playing a dice throwing game. Parameters: Which player wins on which rolls.

** Experimental Probability**

Experiment with experimental probability using a fixed size section spinner, a variable section spinner, 2 regular 6-sided number cubes or design your own number cubes. Appropriate for elementary grades.

** Marbles**

Students learn about sampling with and without replacement by modeling drawing marbles from a bag. Parameters: Number and color of marbles in the bag, replacement rule.

** Racing Game with One Die**

Two players each roll a die, and the lucky player moves one step to the finish. Parameters: what rolls win and how many steps to the finish line.

** Spinner**

Students can create a game spinner with one to twelve sectors to look at experimental and theoretical probabilities.

** Adjustable Spinner**

Students can create a game spinner with variable sized sectors to look at experimental and theoretical probabilities. Parameters: Sizes of sectors, number of sectors, number of trials.

** Bar Graph**

Enter data to create a bar graph, then manipulate the graph's maximum and minimum values.

** Bar Graph Sorter**

Sort colored shapes into a bar graph. Appropriate for elementary grades.

** Circle Graph**

Enter data categories and the value of each category to create a circle graph. Similar to "Pie Chart" but the user can define the data set.

** Measures**

Students enter data and view the mean, median, variance and standard deviation of the data set. Parameters: Number of observations, range for observations, which statistics to view, identifiers for the data.

** Pie Chart**

Students view piecharts. Parameters: Number of sectors, size of sector as a percent.

**Plop It!**

Students click to build dot plots of data and view how the mean, median, and mode change as numbers are added to the plot. Parameters: Range for observations.