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Coded Message Game
In this coded message worksheet, students use the two-digit numbers and letters of the alphabet code to decipher a quote about the brain from Santiago Ramon y Cajal. Students decode eighteen words.
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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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Patterns of Communication
Scholars examine codes, symbols, and other forms of communication. They discuss Morse Code. Next, they are given messages written in code, which they must decipher.
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Cryptography and Cryptanalysis
In this cryptography and cryptanalysis worksheet, 8th graders read the explanation and example for codes and ciphers, then answer 2 questions and decipher 2 messages.
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Morning Message-Mystery Code
Students copy and figure out the Mystery Codeword each day. They copy Mystery Code into journal. They match the number with the letter to decipher the code word. They draw a picture to match code word. At the end of the week, the...
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Coin Codes
Learners work on cracking coin codes in honor of the Navajo Code Talkers Medal. Students review the handout on Crack the Code. Learners race to see who can crack the code the fastest.
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Squigly's Secret Easter Code
In this math instructional activity, students practice solving the code in order to decipher a secret message that is based upon the theme of Easter.
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Codebreaker Math
Students solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages using math...
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Decoding a Mystery Message from Space
Students examine a message sent from outer space and do their best to interpret its meaning. In this problem solving lesson plan, students investigate a code sent to them from "outer space." The students collaborate with their classmates...
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Detective Digis and the Computer Caper
Mathematicians participate in an hands-on activity to investigate the binary number system and write messages in binary code and have classmates decipher the messages. A said video on the topic does not seem to be available, but the...
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Coordinating Coordinates
Third graders explore coordinate pairs and coordinate grids. They use a grid on which each letter of the alphabet is assigned a coordinate pair, 3rd graders decipher a coded message. Pupils compare coordinate pairs on a coordinate grid...
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Signal Corps
Students examine the role of signal corps during the Civil War and explore the technique of 'wigwag.' In this Civil War lesson, students discuss the way they communicate long distance today, they research how a civil war soldier...
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Shh... It's a Secret!
Fifth graders examine a series of rules for deciphering a code. They create their own secret message using a code after watching video. They access a web site to practice their decoding skills.
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Algebra: Introduction to Algebraic Expressions
Seventh graders, in an introductory algebra class, code and decode messages using substitution ciphers. Role-playing as mathematicians, they work in groups to decipher several messages, one of which translates to "math is awesome."
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U Boat Hunt
Students recognize patterns and sequences in numbers. In this geometry lesson, students create rules to define the sequences and patterns they obsere. They translate coded messages as they dicuss navigational terms.
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Basic Crypto Systems
Students try to solve codes mathematically. The use of a code needs a key. Students try to decipher a code with a mathematical key. This requires focus and higher order thinking skills like analysis.
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Simplifying Fractions
In this math instructional activity, students simplify the fractions into simplest form. They use the answers to decipher the coded message at the bottom of the page.
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Basketball Addition Puzzle
In this math worksheet, students solve 25 basic addition facts below 20. Using the sums and the key to the code, students decipher a secret message about basketball.
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Baseball Word Puzzle and Addition Facts
In this math worksheet, students solve 25 basic addition facts below 20. Using the sums and the key to the code, students decipher a secret message about baseball.
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George Washington Addition Puzzle
In this math worksheet, students solve 45 basic addition facts. Using the sums and the key to the code, students will decipher the secret message about George Washington.
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Addition Facts (Chinese New Year Puzzle)
In this math worksheet, students solve 15 basic addition facts with sums up to 20. Using the answers and the code key, students decipher the secret message about Chinese New Year.
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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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Matrices: A Secret Weapon
Students 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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SHHH It's a Secret
Students rewrite word problems using expressions and equations. In this algebra activity, students use the correct variable to solve and write equations. They use the TI to graph their solution.