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Lesson Plan
Curated OER

Matrices: A Secret Weapon

For Teachers 9th - 11th
Students perform operations with matrices. In this algebra activity, students use cryptography and cryptanalysis to solve problems. They add, subtract, and multiply matrices.
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Lesson Plan
Curated OER

Matrices In Encryption And Decryption Of Codes

For Teachers 10th - 12th
Students relate Cryptography to the solving of simultaneous linear equations in matrix notation. They explore various methods of encrypting and decrypting codes. Pupils discuss and solve simultaneous linear equations.
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Lesson Plan
Curated OER

Cryptography on the TI-83 Graphing Calculator

For Teachers 9th - 12th
Students explore the history of cryptography. They assess function notation and transformation, matrix operations, and the fundamentals of modular arithmetic. Using graphing calculators, students develop their own encryption schemes.
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Lesson Plan
Curated OER

Cryptography Implementation

For Teachers 9th - 10th
Students explore cryptology. They write a research paper on cryptography. Using linear equations, students invent a code and write a secret message. Students complete cryptography puzzles.
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Lesson Plan
Curated OER

Transposition Cryptography

For Teachers 8th - 10th
Students differentiate the types of cryptosystems and use them to communicate privately. In this algebra lesson plan, students use substitution and transposition to identify the cryptographs. They send and receive cryptograms as...
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Unit Plan
TED Talks

Ted: Ted Ed: How to Organize, Add and Multiply Matrices

For Students 9th - 10th Standards
When you're working on a problem with lots of numbers, as in economics, cryptography or 3D graphics, it helps to organize those numbers into a grid, or matrix. Bill Shillito shows us how to work with matrices, with tips for adding,...
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Activity
University of Ottawa (Canada)

University of Ottawa: Linear Algebra Close to Earth

For Students 9th - 10th
The author of this site endeavours to explain how linear algebra has many applications in a wide range of disciplines, to help students see its uses in the real world.