Kids of all ages will love these fun secret codes, coding activities and free secret code printables.
“What’s mouse code?” my seven year old asked.
It took me a little while to figure out that he meant ‘morse code’ rather than ‘mouse code’, but from that moment on he was in love with everything about secret codes!
It didn’t take long for my kids to lose themselves in learning, deciphering and creating their own secret codes.
We started out with mouse… I mean Morse code because my 7 year old had read about it in a Horrible Histories book (affiliate link).
Morse code uses dots, dashes and spaces to represent letters numbers and symbols. You can write Morse code, or send it with flashes of light or sounds. Once a prisoner of war even sent a message in Morse code by blinking his eyes!
We made a ‘cheat sheet’ and wrote some Morse code messages. We even had a go at using a flashlight to send Morse code, which was tricky but lots of fun!
You can download the free printable Morse code sheet here.
Try sending Morse code messages with sounds, or actions (such as a flashing light), as well as writing it down. It’s loads of fun to send Morse code messages.
The Pigpen Cipher
The Pigpen cipher is a really old code that is really fun to write. I left my boys a secret message in pigpen for them to decode when they woke up one morning!
After that first message I suddenly started to get little notes written in Pigpen, so I had to keep my decoder sheet handy so I could work out what they said!
You can download the free printable pigpen secret code sheet here.
Pigpen Cipher is a super fun secret code for written messages. It’s a fabulous way to encourage a child who might not like writing, they will be so busy coding an de-coding messages that they won’t even know they are writing! Give it a try with your kids.
Make Your Own Secret Codes
We learned that it is important to make the symbols and drawings we used to represent each letter quite simple, and easy to reproduce accurately. If you make them too complicated it will be impossible to write a coded message that someone else can decipher!
I made up a simple sheet with letters, numbers a couple of punctuation marks and a few blank spaces so we could create as many new secret codes as we wanted!
It would be so fun to work together and create a family or class secret code, and then send a coded message to a relative or another class. Don’t forget to send a de-coder sheet to so they can work out what you are saying and write back!
These printables are A4 sized pdf files, you will need a pdf reader such as adobe acrobat to open them. If you are printing on US ‘letter sized’ paper be sure to select ‘fit’ or ‘shrink to fit’ from your printer options.
Please remember that the printables at picklebums.com are for personal or individual classroom use only, you may not sell, share, or link directly to these files.
More Cool Secret Code for Kids
Now that you’ve had fun with these spy decoder printables, there are lots more super cool secret code activities you can do.
Here are a few more secret code ideas and activities to try:
Make maths fun with this Number line secret code
Try one of these secret message activities – our favourites are the folded ones!
Make a secret code from Legos!
Learn the ASCII binary alphabet with Lego.
Print this secret decoder pinwheel.
Have a go at decoding these Star Wars quotes.
Try one of these middle grade books about puzzles and codes:
Do you need more fun activities for school aged kids?
Try one of these…
Read the comments or scroll down to add your own:
This is such a great resource! I am a Girl Scout leader and my troop is working on their Detective badge right now. I wanted some nice printables for them to learn about different codes, and something for them to create their own. Thank you so much for sharing. I shared your link with other leaders too!
How do you download them. They all seem to be on Pinterest and unprintable
Just scroll down the article and click the links under each printable to download them…. the blue text that says ‘download the free printable….. here’.
I just stumbled on this for the Detective badge too! So helpful!
Mary Mertz says
Remember writing in my diary with this code 45 years ago. Writing to my grandkids with this now because they are quarantined with this Covid-19. Thought it would be fun.
Pat Ivester says
I love Mouse/Moose Code and fund coding ideas. Thank you for bringing the smiles and little kid inside of me again. Your site is great.
SNK Creation says
It is very helpful for me. Keep blogging like this. Thanks for sharing us.