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'Semaphore Signals' printed from http://nrich.maths.org/

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Semaphore is a way to signal the alphabet using two flags, one held in each hand.

To send a message, your left and right hands have to be in two different positions. You start with both hands pointing down.

Here are the signals for the letters of the alphabet:


A B C D E F G
H I K L M N
O P Q R S
T U Y
J V
W X
Z

Image by kind permission of http://inter.scoutnet.org/


What does this message say?

You might want to send a message that contains more than just letters (exclamation marks, question marks, full stops etc). How many other symbols could you send using this code?