Lesson Plan: Creating a Caesar Cipher

Lesson Overview

In this lesson, students will learn about the Caesar cipher, a simple encryption technique.

Learning Objectives

• Understand how the Caesar cipher works.
• You will listening on the micro:bit Radios to discover other people message.
• Write at least two other students cyber message and the translation.

Lesson Structure

1. Introduction to Cryptography (10 min)

- Brief history of cryptography.
- Overview of substitution ciphers.
- Explanation of the Caesar cipher:

• Make sure you using the following Cipher Letters and Numbers
• ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789
• Mr. Cusack will give some modification to your message.
• Each letter is shifted by a fixed number of positions.
• Example: Shift of 3 → A → D, B → E, C → F, etc.
• Decryption reverses the shift.

Assessment

• Students submit the screen print of their Notes to google classroom.
• The file name will be PX_lastname_CaesarCipherNote.png