Teach your students how to encrypt and decrypt binary messages as well as understand binary code. This resource includes a hidden December themed message which students need to decrypt using the key (ASCII Table). Students are also given the option to write their own encrypted binary message.

This is a perfect CS unplugged activity and can be used as an introduction to a lesson, for homework, for early finishers or even when you have no access to computers in the computer lab.

This is an ideal activity for the ISTE Standard of Computational Thinking

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