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Clock Arithmetic |
Work with various types of clocks in order to learn about modular arithmetic operations. Parameters: Number of hours on the clock.
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Converter |
Converts fractions to decimals and decimals to fractions. Observe the relationships between fractions and decimals.
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Sequencer |
Learn about number patterns in sequences and recursions by specifying a starting number, multiplier, and add-on. The numbers in the sequence are displayed on a graph, and they are also listed below the graph.
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Clock Wise |
Practice reading a clock, input times for the clock to display, or let the clock generate random times for you to read. Choose from three difficulty levels.
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Flake Maker |
Create your own fractals by drawing a "line deformation rule" and stepping through the generation of a geometric fractal. Parameters: Grid type, number of bending points on the line.
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Floor Tiles |
Build a "floor tile" by dragging the corners of a quadrilateral. Learn about tessellations created from quadrilaterals when the shape you build is tiled over a plane.
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Fractured Pictures |
Generate complicated geometric fractals by specifying starting polygon and scale factor.
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Image Tool |
Measure angles, distances, and areas in several different images (choices include maps, aerial photos, and others). A scale feature allows the user to set the scale used for measuring distances and areas.
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Stopwatch |
Functions like a real stopwatch, recording times that you choose. This stopwatch is accurate to the nearest tenth of a second. Parameters: Count up from 0 or count down from a set time.
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Surface Area and Volume |
Manipulate dimensions of a triangular or rectangular prism, and investigate how the surface area and volume change. Parameters: length, width and height.
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Tessellate! |
Create a tessellation by deforming a triangle, rectangle or hexagon to form a polygon that tiles the plane. Corners of the polygons may be dragged, and corresponding edges of the polygons may be dragged. Parameters: Colors, starting polygon.
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Transmographer 2 |
Build your own polygon and transform it in the Cartesian coordinate system. Experiment with reflections across any line, rotations about any point, and translations in any direction. Parameters: Shape, x or y translation, x or y reflection, angle of rotation
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Two Variable Function Pump |
Enter two complex numbers (z and c) as ordered pairs of real numbers, then click a button to iterate step by step. The iterates are graphed in the x-y plane and printed out in table form. This is an introduction to the idea of prisoners/escapees in iterated functions and the calculation of fractal Julia sets.
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Conic Flyer |
Manipulate different types of conic section equations on a coordinate plane using slider bars. Learn how each constant and coefficient affects the resulting graph. Choose from vertical or horizontal parabola, circle, ellipse, and vertical or horizontal hyperbola.
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Data Flyer |
Enter a set of data points, then derive a function to fit those points. Manipulate the function on a coordinate plane using slider bars. Learn how each constant and coefficient affects the resulting graph.
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Derivate |
Begin understanding the meaning of the derivative at a point on a function. View the graph and the equation of the line tangent to any function at any point on the function.
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Function Flyer |
A more advanced version of Slope Slider, 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.
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Graph Sketcher |
Students can create graphs of functions by entering formulas -- similar to a graphing calculator.
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Graphit |
Create graphs of functions and sets of ordered pairs on the same coordinate plane. This is like a graphing calculator with advanced viewing options.
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InteGreat! |
InteGreat! allows the user to visually explore the idea of integration through approximating the integral value with partitions. The activity integrates a function and displays the value of the definite integral as well as overlays the specified number of partitions on the graph of the function. The user controls the number of partitions and the upper and lower limits.
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Ordered Simple Plot |
Plot ordered pairs on the graph, and they will be connected in the order that they are input. This enables you to decide how the pairs should be connected, rather than having the computer connect them from left to right.
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Recursion |
Graph recursive functions by defining f(0)=C and defining f(n) based on f(n-1).
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Sequencer |
Learn about number patterns in sequences and recursions by specifying a starting number, multiplier, and add-on. The numbers in the sequence are displayed on a graph, and they are also listed below the graph.
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Simple Plot |
Plot ordered pairs of numbers, either as a scatter plot or with the dots connected. Points are connected from right to left, rather than being connected in the order they are entered.
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Slope Slider |
Manipulate a linear function of the form f(x)=mx+b using slider bars. Explore the relationship between slope and intercept in the Cartesian coordinate system.
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Two Variable Function Pump |
Enter two complex numbers (z and c) as ordered pairs of real numbers, then click a button to iterate step by step. The iterates are graphed in the x-y plane and printed out in table form. This is an introduction to the idea of prisoners/escapees in iterated functions and the calculation of fractal Julia sets.
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Adjustable Spinner |
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.
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Dice Table |
Experiment with the outcome distribution for a roll of two dice by simulating a dice throwing game. Parameters: Which player wins with which total rolled.
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Experimental Probability |
Experiment with probability using a fixed size section spinner, a variable section spinner, two regular 6-sided dice or customized dice. Appropriate for elementary grades.
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Spinner |
Create a game spinner with one to twelve sectors to look at experimental and theoretical probabilities. Parameters: Number of sectors, number of trials.
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Adjustable Spinner |
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.
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Bar Graph |
Enter data to create a bar graph, then change many settings for the graph's appearance.
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Box Plot |
Students can create box plots which DO use the median in calculating the interquartile ranges for either built in or user-specified data as well as experiment with outliers. These graphs are also known as box-and-whisker plots.
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Box Plot 2 |
Create boxplots which do not use the median in calculating the interquartile ranges for either built in or user-specified data. This also allows the user to experiment with outliers. These graphs are also known as box-and-whisker plots.
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Circle Graph |
Enter your own data categories and the value of each category to create a pie chart. There are also built in data sets which can be viewed.
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Data Flyer |
Enter a set of data points, then derive a function to fit those points. Manipulate the function on a coordinate plane using slider bars. Learn how each constant and coefficient affects the resulting graph.
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Histogram |
View histograms for built-in or user-specified data. Experiment with how the size of the class intervals influences the appearance of the histogram. Parameters: Data sets, class sizes.
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Measures |
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.
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Multi Bar Graph |
Enter data to create a double bar graph, then manipulate the graph's maximum and minimum values.
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Pie Chart |
Create a pie graph, adjusting the size of the divisions using your mouse or by entering values. Parameters: Number of sections, size of sections, whether to use percents or fractions.
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Plop It! |
Build line plots of data using your mouse. View how the mean, median, and mode change as entries are added to the plot. Parameters: Range for observations.
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Regression |
Plot a bivariate data set, determine the line of best fit for their data, and then check the accuracy of your line of best fit.
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Scatter Plot |
Graph ordered pairs and customize the graph title and axis labels. Points are connected from left to right, rather than being connected in the order they are entered.
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Simple Plot |
Plot ordered pairs of numbers, either as a scatter plot or with the dots connected. Points are connected from right to left, rather than being connected in the order they are entered.
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Stem and Leaf Plotter |
View stem-and-leaf plots of your own data, and then practice finding means, medians and modes. Parameters: Data
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Data Flyer |
Enter a set of data points, then derive a function to fit those points. Manipulate the function on a coordinate plane using slider bars. Learn how each constant and coefficient affects the resulting graph.
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Tessellate! |
Create a tessellation by deforming a triangle, rectangle or hexagon to form a polygon that tiles the plane. Corners of the polygons may be dragged, and corresponding edges of the polygons may be dragged. Parameters: Colors, starting polygon.
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