The note
How schools teach it now
Schools teach alphabetical order but not letter positions. The 11+ strategy: write the alphabet across the top of the page with 1 to 26 underneath, then compare each letter with its code letter and count the jump, forwards or backwards.
5-minute kitchen-table activity
Write a secret message for your child in a +1 code (each letter moves one place on: HELLO becomes IFMMP). Give them the alphabet line to crack it, then let them code a message back to you with a different jump.
Worked example
If the code for CAT is ECV, what is the code for DOG?
- C to E is 2 places forward, A to C is 2, T to V is 2. The rule is +2.
- D (4) + 2 = F (6); O (15) + 2 = Q (17); G (7) + 2 = I (9).
Answer: FQI
Common mistakes to watch for
- Assuming every letter moves the same amount without checking each one.
- Coding when the question asks to decode, so moving the wrong way.
- Losing count past Z: after Z it goes back to A.
Encouragement
- Try saying
- “Write the alphabet line first. Good code breakers always check each letter.”
- Rather than
- “You should know where the letters are by now.”