Ciphering a sentence
A cipher is a message that has been written in such a way (encoded) that it is unreadable by others. In this lesson, students will use mapping to encode a sentence. Students will work with a partner to create an algorithm that describes the encryption process. They will also examine encoded and decoded messages to recognize patterns to help decode messages and develop strategies to decompose the problem.
Additional details
| Year band(s) | 3-4, 5-6 |
|---|---|
| Content type | Lesson ideas |
| Format | Web page |
| Australian Curriculum Digital Technologies code(s) |
AC9TDI4P01
Define problems with given design criteria and by co-creating user stories
AC9TDI4P02
Follow and describe algorithms involving sequencing, comparison operators (branching) and iteration
AC9TDI6P02
Design algorithms involving multiple alternatives (branching) and iteration |
| Technologies & Programming Languages | other programming languages |
| Keywords | Algorithm, Computational thinking, Secret messages, Encryption, Decryption, Cipher, Pattern recognition, Decomposition, Google for Education, Education, Google, GoogleCT |
| Integrated, cross-curriculum, special needs | English |
| Organisation | ESA |
| Copyright | Creative Commons Attribution 4.0, unless otherwise indicated. |
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