Secret Code Breakers
Codes can look impossible at first, but most codes have a pattern hiding inside them. This mission gives families a playful way to practice looking for patterns, testing ideas, and solving something together.
Gather Your Gear
- Paper
- Pencil
- Alphabet chart or written alphabet
- Index cards or small scraps of paper
- Optional: envelope
- Optional: markers or colored pencils
- Optional: timer
Steps
- Write the alphabet from A to Z across the top of a piece of paper.
- Create a simple number code by matching each letter to a number.
A = 1B = 2C = 3D = 4
Continue until Z = 26.
- Write a short secret message using numbers instead of letters.
Example:
16 - 12 - 1 - 25
This spells:
PLAY
- Give the coded message to someone else and let them solve it using the alphabet key.
- Once they solve it, switch roles and let them create a message for you.
- Talk about what helped:
- Did you look for repeated numbers?
- Did you check the alphabet key each time?
- Did any words become easier once you solved part of the message?
Twist
Try a harder code.
Instead of A = 1, shift the alphabet by one letter.
A = BB = CC = D
Now the word PLAY becomes QMBZ.
Try writing and solving a short message with the shifted alphabet.
You can also create your own family code using symbols, shapes, colors, or tiny drawings instead of letters.