|
Education
Web
Expected Value
Introduces students to modular (clock) arithmetic and how modular arithmetic can be used to encode messages using simple shift, multiple and affine ciphers. Grade Level: Grades 6-8, Grades 9-12 Related Topics: addition, affine cipher, arithmetic, ciph...
Project Interactivate - Lessons
Introduces students to modular (clock) arithmetic and how modular arithmetic can be used to encode messages using simple shift, multiple and affine ciphers. Grade Level: Grades 6-8, Grades 9-12 Related Topics: addition, affine cipher, arithmetic, ciph...
Calculus: Difference Equations to Differential Equations - Dan Sloughter; Furman Universit...
Difference Equations to Differential Equations – synechism.org synechism.org Log in Home Search Difference Equations to Differential Equations An Introduction to Calculus By Dan Sloughter, Furman University Chapter 1: Sequences, limits, and difference equations Calculus: Area...
Knowing Poe: Secret Writing
find several points where you can try to decipher message. Click the 'Interactive Secret Writing' tab to open a new browser window where you can work on these puzzles. 1. Introduction If you received a note like this, what would you think? IBWF ZPV SFBE UIF BTTJHONFOU? Obviously,...
Secrets, Lies and Atomic Spies: Decipher A Coded Message
decipher a message. Some ciphers have simple keys, others, complex ones. The key for a cipher used by Augustus Caesar, some 2,000 years ago, was simple enough: The receiver just had to shift the alphabet one position. In other words, "a" was represented by "...
Frequency Analysis
Decrypting text Decrypting Text - code breaking software Caesar shifts Frequency analysis Letter substitution Affine shift Vignère cipher Transposition ciphers ADFGVX cipher Frequency analysis Encrypted text is sometimes achieved by replacing one letter by another....
Credit for Beginners
This is the score that tells what kind of loan-risk a person is. The lower the beacon score, the less likely it is that a person will get approved for a loan. Many students do not have a beacon score because they have no credit. Probably the easiest way to establish cre...
Scholastic: Spotlight District: A Remarkable Turnaround
impoverished communities in the nation by the Brookings Institution, a Washington, D.C.-based think tank. Average household incomes hover near $30,000 in this urban tangle of narrow one-way streets lined with two- and three-family homes. Two out of every three students do not sp...
Affine Recurrence Spreadsheet: A (n) = r *A (n -1) b
spreadsheet to numerically investigate affine recurrence relations. Instructions NOTE: Saving and opening files locally only works if you are running the applet from the CD or a local copy of the applet. Loading sample data sets will work if you are running off the CD or conne...
NOVA: Decoding Nazi Secrets
the Ciphers Jim Gillogly, who has been called "arguably the best non-government cryptanalyst in the U.S." in the field of classical (historical) cryptosystems, offers three World War II-style ciphers of different levels of difficulty for you to try to break. Send a Coded Message (...
|
