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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.
Students work step-by-step through the generation of a different Hilbert-like Curve (a fractal made from deforming a line by bending it), allowing them to explore number patterns in sequences and geometric properties of fractals.
Discusses methods of converting from the base ten system to another base number system.
This worksheet is for use with the Sequencer activity (http://www.shodor.org/interactivate/activities/Sequencer/).
A supporting worksheet for Interactivate
Determine the value of a given fraction represented as a point on a number line. Then find a fraction whose value is a given fraction. Fraction Pointer 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/).
This worksheet is for use with the activity Fire Assessment (http://www.shodor.org/interactivate/activities/FireAssessment/).
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 Triangle activity (http://www.shodor.org/interactivate/activities/SierpinskiTriangle/).
a resource from CSERD, a pathway portal of NSDL NSDL CSERD