5.2 Cryptography: Flag Semaphore

 Lesson 5.2 Coded Messages Using Flags: The Semaphore Alphabet  
 
Aim: Are you ready to learn? Today you will discover ways in which you can send coded messages using flags.   
 
Be Inspired:  
It's always good to be inspired!  

International Maritime Signal Flags 
How to read Signal Flags! 



The Semaphore Alphabet 
Flag Semaphore 


 

Check It Out:  
Check it out! Can you figure out the coded word that has been programmed using Scratch? 
 



Do Your Best:  
Now it's your turn! See if you can recode the Scratch messages to spell out the letters of your favourite animal and/or food. Once you have coded your message download your Scratch project and email it to Mrs. Klein via your Office 365 accounts. 
 
 
Extension Task:  
Are you ready for an extra challenge? See if you can code a more complex secret message or have a go at designing your own flags.
 
Fun! 
Well done! You have finished your work. It's time for some fun. 
 

https://scratch.mit.edu/projects/563643977/editor
https://signalsmedia.github.io/