Shodor Education Foundation
Caesar Cipher
Caesar ciphers hide secret missives. A simple interactive lets users encode and decode hidden messages. The cipher method here is the Caesar shift.
Meadows Center for Preventing Educational Risk, University of Texas at Austin
Lesson 9 - Contractions
Is it do'nt or don't? How about doesn't or does'nt? A lesson on contractions helps learners identify, form, and use contractions. Components within the plan include direct instruction on decoding and encoding contractions, as well as...
EngageNY
Using Matrix Operations for Encryption
Data encryption is an important security measure for sensitive data stored on computers. Pupils learn how to utilize matrices for creating code. They also get a great review of matrix multiplication, inverse matrices, and the identity...