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This worksheet is for use with the Caesar Cipher II activity (http://www.shodor.org/interactivate/activities/CaesarCipherTwo/).
Sets (Beginner) (Discussion)
Introduces elementary students to sets and elements using shapes.
This worksheet is for use with the Practicing Arithmetic lesson plan (http://www.shodor.org/interactivate/lessons/PracticingArithmetic/).
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.
Estimator Four (Activity)
Play a "Connect-Four" style game, earning a game piece each time you answer an estimation question correctly. This game asks the players to estimate the answer to addition, multiplication, and percentage questions. Choose difficulty level, question types, and time. Estimator Four is one of the Interactivate assessment games.
Fractal Dimensions (Activity)
Determine the fractal dimensions of several line-deformation fractals. Input the scale factor and number of similar copies, and the dimension will be calculated. Fractal Dimensions is one of the Interactivate assessment explorers.
This worksheet is for use with the Caesar Cipher II activity (http://www.shodor.org/interactivate/activities/CaesarCipherTwo/).
Cantor's Comb (Activity)
Learn about fractions between 0 and 1 by repeatedly deleting portions of a line segment, and also learn about properties of fractal objects. Parameter: fraction of the segment to be deleted each time.
Dimension and Scale (Discussion)
Discusses fractal dimension, how that dimension relates to scale, and the formula needed to calculate the fractal dimension of an object.
Self-Similarity (Discussion)
Discusses how fractals are self-similar objects.

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