Clock Arithmetic and Cryptography


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This lesson is designed to hone students' arithmetic skills by introducing them to clock arithmetic and its applications in cryptography. The lesson provides links to discussions and activities related to arithmetic, clock arithmetic, and cryptography as well as suggested ways to integrate them into the lesson. Finally, this lesson provides links to follow-up lessons designed for use in succession with an introduction to clock arithmetic.

Learning Registry Activity


    Topics and Grades

    Grade: PS/Pre-K to 12

    Topics: Education, Child Development & Family Services, Measurement & Geometry, Number Sense, Current Science, Algebra & Functions, Curriculum Design, Professional Development, Mathematics, Probability, Measurement & Tools

    Resource Pedagogy

    Resource Type/Classification:

    • Teacher Materials

    Tool for: Teachers