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Cryptography Implementation
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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Master Spy
Students explain that a code is a system of symbols, letters, words, or signals that are used instead of ordinary words and numbers to send messages or to store information. They practice deciphering a variety of secret codes used in...
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Secret Message
Students explore a woman war hero, Hannah Senesh, who used secret codes and messages to protect important information. They follow instructions to write their own secret messages.
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Secret Sharing with Linear Equations
Students use linear equations to reveal a secret message. They practice writing linear equations from two ordered pairs. Students determine the y-intercept of the line from the equation. They reveal the secret message from the teacher.
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Basic Crypto Systems II
Ninth graders discuss the Enigma machine used during World War II. They explore the substitution cipher and variations of it. Students examine the advantages and disadvantages of this cipher. Students write a message using the code...
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Create Your Own Coded Language
Students discover and identify cryptology used in everyday life. They decipher or crack codes. Students create their own secret writing or coded messages, and develop a dictionary of eponyms. They discuss how they have already...
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Code Crackers
Students explore cryptology by studyingng about two simple coding methods, the Caesar cipher and the Vigenere cipher. Students then use matrices and their inverses to create more sophisticated codes.
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Problem Solving Model
Use a vocabulary chart to introduce math functions. The class defines a list of mathematical vocabulary terms on a worksheet, as well as completes equations and expressions. They examine word problems and practice transcribing them into...
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Matrices: A Secret Weapon
Learners perform operations with matrices. In this algebra lesson, students use cryptography and cryptanalysis to solve problems. They add, subtract, and multiply matrices.
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Coding History
Students study the topic of codes in Computer Science. They research it history, divisions in the field and its applications. The activity also includes a brief overview of the information technology theory.
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Number Theory - Week 12
For this number theory worksheet, students study integers and their properties. They explore the Fibonacci Sequence and approximate irrational numbers. This two-page worksheet contains eight problems.
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Secrets and Spies
Students explore the lives of spies. In this secret government agencies lesson, students visit the Imperial War Museum and the Essex Secret Bunker online or in person to discover details about Britain's spies and secret bunker.
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Decode Word Is..
Students solve problems using patterns. In this algebra lesson, students identify the relation, domain and range of a function. They graph functions using coordinate pairs.
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Playing with Language: Tall Tales and Codes
Students interpret and identify the elements of folktales, with an emphasis on tall tales, in this lesson. Students utilize brainstorming techniques to list ways people communicate. Students also read and create a time line and present...
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