Beans are for more than just counting! Introduce public key cryptography with cups and beans and ask scholars to use the beans to send secret numbers. Participants learn how this activity relates to public key cryptography and asymmetric keys in general.

Concepts

coded messages, cipher, secret codes, technology resources

Show More Show Less

Instructional Ideas

• Have the class create a graphic organizer comparing symmetric and asymmetric keys

Classroom Considerations

• Must set up a free account in Code Studio to access assessment questions
• Activity requires cups and beans (or other small item in large quantities)
• 10th lesson of the series

Pros

• Lists real-world concerns for learners to consider
• Includes some ideas to prep pupils for next lesson

Cons

• None