Curated OER
Decoding Machine
Young scholars are introduced to the concept of variables and their uses. In groups, they are given a code in which they must find the value of the missing words. To end the lesson plan, they find the value of words over ten letters long...
Curated OER
Fraction Subtraction Code Breaker
In this fraction subtraction code breaker worksheet, 5th graders solve 11 fraction subtraction problems with common denominators, then use the answers to break the code.
Curated OER
Mystery Code
In this fractions secret code worksheet, students solve 9 problems that require them to add and subtract using fractions. Students use their answers to decode a mystery message.
Curated OER
U Boat Hunt
Students recognize patterns and sequences in numbers. In this geometry instructional activity, students create rules to define the sequences and patterns they obsere. They translate coded messages as they dicuss navigational terms.
Curated OER
The Rotating Grille
Students experience the geometric method of coding by actual construction and use of a rotating grille. Students use rotations and reflections to code and decode messages. Students explore nomenclature and symmetry.
Curated OER
Clock Arithmetic and Cryptography
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills.
Curated OER
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."
Curated OER
Birthday Presents: How to Give and Receive
Students discuss giving and receiving presents at a birthday party. In this social skills instructional activity, students practice using manners when giving and receiving gifts. This instructional activity also has other...
Curated OER
English Vocabulary Skills: AWL Sublist 4 - Exercise 3a
For this online interactive English vocabulary skills worksheet, students answer 10 matching questions which require them to fill in the blanks in 10 sentences. Students may submit their answers to be scored.
Curated OER
Incorporate Black History into Math
February is Black History Month. So why not highlight lessons that connect mathematics to Africans and African Americans?
Curated OER
You Know the Answer
In this problem solving worksheet, 4th graders are given an answer to a question and must solve the mathematical problems to discover the secret question. Students solve for 18 problems using addition, subtraction, multiplication and...
Curated OER
Money Matters - Teaching About Economics
The right money lesson plans can teach students about economics in an engaging way.
Curated OER
Cryptography on the TI-83 Graphing Calculator
High schoolers 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...
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Playing with Language: Tall Tales and Codes
Young scholars 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. Young scholars also read and create a time line...
Curated OER
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.
PBS
Pbs Kids Afterschool Adventure!: Operation: Shape It Up Activity Plan
Get your spy glasses ready! In this weeklong adventure, children will explore shapes and their attributes and use this knowledge to decode a secret message. Children will learn about two-dimensional (flat) and three-dimensional (solid)...