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This worksheet is for use with the Recursion activity (http://www.shodor.org/interactivate/activities/Recursion/).
Base Ten (Discussion)
Discusses the base ten system and how it differs from other base number systems.
Koch's Snowflake (Activity)
Step through the generation of the Koch Snowflake -- a fractal made from deforming the sides of a triangle, and explore number patterns in sequences and geometric properties of fractals.
Outlines the approach to playing the chaos game and how it relates to geometric fractals.
Caesar Cipher II (Activity)
Encode and decode messages to determine the form for an affine cipher. Input a message to encode, then input your guesses for the constant and multiplier. Caesar Cipher II is one of the Interactivate assessment explorers.
This worksheet is for use with the Sierpinski's Carpet activity (http://www.shodor.org/interactivate/activities/SierpinskiCarpet/).
Spy Game (Lesson)
Students will learn about modular arithmetic in order to decipher encrypted messages.
Fire Assessment (Activity)
Learn about estimation through modeling of a forest fire. This activity allows the user to burn a virtual forest, then estimate the number, the percent, or the fraction of trees burned. Fire Assessment is one of the Interactivate assessment explorers.
Sets (Discussion)
Gives an introduction to sets and elements.
Introduces students to the ideas involved in understanding fractals.
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