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This worksheet is for use with the Koch's Snowflake activity (http://www.shodor.org/interactivate/activities/KochSnowflake/).

This worksheet is for use with the Venn Diagram Shape Sorter activity (http://www.shodor.org/interactivate/activities/ShapeSorter/).

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.

The question of fairness in a game of two dice leads to the concept of divisibility.

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.