Use this fun magic trick to introduce your students to binary!

Age groups relevant for by Key Stage:

KS2,

KS3,

KS4,

KS5

Possible duration of tasks:

Up to 30 mins,

30 mins - 1 hour

Birthday Magic Cards - Print Out (PDF - 22.61 KB)

Teacher Notes Birthday Binary Trick (PDF - 130.14 KB)

Birthday Magic Trick (PDF - 113.64 KB)

## Curriculum Topics Covered

Powers, binary

## MORE INFORMATION

This trick (that often appears in Christmas crackers!) uses binary to make it work.

You could demonstrate the trick to students - our **Teacher Notes** explain how the trick is done. We've then included some suggestions in the notes of how you could help students work out how the trick is done.

**Birthday Magic Trick** has a copy of the cards and some key questions for students on it.

And we've included **Birthday Magic Cards - Print Out **that can be printed out and cut up to give students their own copy of the cards.

See Matt's video below about binary in the real world! In the video he introduces us to binary overflow problems.