Interactive Shodor

Interactive Shodor

Caesar Cipher Create your own affine cipher for encoding and decoding messages. Input your own constant and multiplier, then input a message to encode.   Clock Arithmetic Work with various types of clocks in order to learn about modular arithmetic operations. Parameters: Number of hours on the clock.   Converter Converts fractions to decimals and decimals to fractions. Observe the relationships between fractions and decimals.   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.   Mixtures Mixtures allows exploration of percents through two piles of colored and uncolored chips. The user must decide how many chips to color to create the desired percentage of colored chips compared to the total pile. Mixtures is one of the Interactivate assessment explorers.   Number Base Clocks 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 numbers on the clock in base 10 or in your other chosen base to explore the relationship between those values.   Recursion Graph recursive functions by defining f(0)=C and defining f(n) based on f(n-1).   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.   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. Geometry  (13)   3D Transmographer Build your own polygon and transform it in the Cartesian coordinate system. Experiment with reflections across any line, revolving around any line (which yields a 3-D image), rotations about any point, and translations in any direction.   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. Clock Wise is one of the Interactivate assessment explorers.   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.   Floor Tiles Build a "floor tile" by dragging the corners of a quadrilateral. Learn about tessellation on quadrilateral figures when the shape you built is tiled over an area.   Fractured Pictures Generate complicated geometric fractals by specifying starting polygon and scale factor.   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.   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.   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.   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.   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.   Transmographer Explore the world of translations, reflections, and rotations in the Cartesian coordinate system by transforming squares, triangles and parallelograms. Parameters: Shape, x or y translation, x or y reflection, angle of rotation.   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   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. Algebra  (15)   3D Transmographer Build your own polygon and transform it in the Cartesian coordinate system. Experiment with reflections across any line, revolving around any line (which yields a 3-D image), rotations about any point, and translations in any direction.   Caesar Cipher Create your own affine cipher for encoding and decoding messages. Input your own constant and multiplier, then input a message to encode.   Derivate View the graph and the equation of the line tangent to any function at any point on the function.   Graph Sketcher Students can create graphs of functions by entering formulas -- similar to a graphing calculator.   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.   InteGreat! InteGreat! allows the user to visually explore the idea of integration through approximating the integral value with partitions. The user controls the number of partitions and the upper and lower limits.   Linear Inequalities Students create linear inequalities and systems of linear inequalities on a coordinate plane. This is like a graphing calculator with advanced viewing options.   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.   Polar Coordinates An activity that allows users to explore the polar coordinate system.   Recursion Graph recursive functions by defining f(0)=C and defining f(n) based on f(n-1).   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.   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.   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.   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.   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. Probability  (4)   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.   Coin Toss Simulation of a coin toss allowing the user to input the number of flips. Toss results can be viewed as a list of individual outcomes, ratios, or table.   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.   Spinner Create a game spinner with one to twelve sectors to look at experimental and theoretical probabilities. Parameters: Number of sectors, number of trials. Statistics  (18)   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.   Bar Graph Enter data to create a bar graph, then change many settings for the graph's appearance.   Box Plot Students can create box plots for either built-in or user-specified data as well as experiment with outliers. User may choose to use or not use the median for calculation of interquartile range.   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.   Coin Toss Simulation of a coin toss allowing the user to input the number of flips. Toss results can be viewed as a list of individual outcomes, ratios, or table.   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.   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.   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.   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.   Multi Bar Graph Enter data to create a double bar graph, then manipulate the graph's maximum and minimum values.   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.   Pie Chart Create a pie chart, 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.   Plop It! Build dot 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.   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.   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.   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.   Spinner Create a game spinner with one to twelve sectors to look at experimental and theoretical probabilities. Parameters: Number of sectors, number of trials.   Stem and Leaf Plotter View stem-and-leaf plots of your own data, and then practice finding means, medians and modes. Stem and Leaf Plotter is one of the Interactivate assessment explorers. Discrete  (10)   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.   Caesar Cipher Create your own affine cipher for encoding and decoding messages. Input your own constant and multiplier, then input a message to encode.   Clock Arithmetic Work with various types of clocks in order to learn about modular arithmetic operations. Parameters: Number of hours on the clock.   Coin Toss Simulation of a coin toss allowing the user to input the number of flips. Toss results can be viewed as a list of individual outcomes, ratios, or table.   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.   Fractured Pictures Generate complicated geometric fractals by specifying starting polygon and scale factor.   Number Base Clocks 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 numbers on the clock in base 10 or in your other chosen base to explore the relationship between those values.   Recursion Graph recursive functions by defining f(0)=C and defining f(n) based on f(n-1).   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.   Spinner Create a game spinner with one to twelve sectors to look at experimental and theoretical probabilities. Parameters: Number of sectors, number of trials. Other  (2)   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. Clock Wise is one of the Interactivate assessment explorers.   Polar Coordinates An activity that allows users to explore the polar coordinate system.

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