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Step through the generation of Sierpinski's Carpet -- a fractal made from subdividing a square into nine smaller squares and cutting the middle one out. Explore number patterns in sequences and geometric properties of fractals.

Impossible Graphs (Discussion)

Shows what makes a graph represent impossible situations and how to avoid these problems.

Sequencer Exploration Questions

This worksheet is for use with the Sequencer activity (http://www.shodor.org/interactivate/activities/Sequencer/).

Ordered Simple Plot Exploration Questions (doc)

This worksheet is for use with the Ordered Simple Plot activity (http://www.shodor.org/interactivate/activities/OrderedSimplePlot/).

Caesar Cipher (Activity)

Create your own affine cipher for encoding and decoding messages. Input your own constant and multiplier, then input a message to encode.

Reading Graphs (Lesson)

Demonstrates the connections between formulas, graphs and words.

Function Machine Game Suggestions (doc)

This worksheet is for use with the Function Machine activity (http://www.shodor.org/interactivate/activities/FunctionMachine/).

Simple Plot Exploration Questions

This worksheet is for use with the Simple Plot activity (http://www.shodor.org/interactivate/activities/SimplePlot/).

Solving Equations Worksheet

This worksheet is for use with the lesson Solving Equations (http://www.shodor.org/interactivate/lessons/SolvingEquations/).

Recursion (Activity)

Graph recursive functions by defining f(0)=C and defining f(n) based on f(n-1).

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