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1200 Outer Park Drive
Springfield, IL 62704
217/787-3006
 
Chaos Theory begins September 15, 2014
Secret Communications

Guess and Check
http://crypto.interactive-maths.com/frequency-analysis-breaking-the-code.html

http://www.cryptoclub.org/tools/substitution_cipher.php

Caesar’s Cipher
http://www.cryptoclub.org/games/desert_oasis.php

Finding the Right Route
http://www.unmuseum.org/excoded.htm

On or Off: Reading the Code
http://www.edb.utexas.edu/resources/mathclub/countingmachine/math.html

Symbolic Encryption
http://www.civilwarsignals.org/cipher/pigpencipher.html

Locking Onto an Idea: Considering the Possibilities
http://www.mathisfun.com/combinatorics/combinations-permutations.html

Digitized Message Transmission
http://morsecode.scphillips.com/jtranslator.html

Who Holds the Key?
http://illuminations.nctm.org/Activity.aspx?id=3550

Secret Codon
http://www.pbs.org/wgbh/aso/tryit/dna/shockwave.html