Lessons and Tools for Teachers

#### Lessons for Cryptography

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• The Rotating Grille - … rich problem solving exercises. Finally, some of the vocabulary of cryptography can be introduced. Transformational properties of the grille Before numbering … cryptography terms After working with the grille the students are ripe for learning some of the formal and informal jargon of cryptography
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• Discrete Dots and the TI-83 - … This lesson is based on Adi Shamir's talk on "Cryptography Without Computers" and the UCSMP Geometry book definition of discrete … , Algebra I or II, and courses in discrete mathematics or cryptography. Grade Levels Grades 9 - 12 (also 7 & 8 with revisions … off. References UCSMP Geometry, Scott Foresman (c)1997 Shamir, Adi, "Cryptography Without Computers"
• Follow the Trail to Discover How Algebraic Properties of Identity and Inverse Play Important Roles in Securing Secrecy. - … , 7 ____ , ____ , 9____ . PART II - Identities and Inverses in Cryptography Solve the case of a simple crypto system. Decode this … Roman Empire, more sophisticated methods are needed today. Public-Key Cryptography is a method that allows anyone to encode a message … 200 digits long. Two advantages of using modular systems in cryptography are: 1. It eliminates rounding problems. 2. It makes large …
• Secret Sharing with Linear Equations - … . Some of their comments are listed below. Attachments Cryptography Activity Teacher Reference for Cryptography Activity Student Comments "I enjoyed this lesson because …