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Help at home · Non-Verbal Reasoning

How to explain codes to your child

Each figure has a letter code where each letter stands for one feature, and your child writes the code for a new figure.

The note

How schools teach it now

Not taught in school. The 11+ strategy: take one letter position at a time. Find two figures sharing that letter and ask what they have in common (shape, shading, size, arrow direction). Some features change but are not in the code, so ignore them.

5-minute kitchen-table activity

Lay out playing cards and invent a code: the first letter for colour (R red, B black), the second for picture or number (P or N). Write codes for a few cards, then let your child write the code for a new card. Swap roles.

Worked example

A white circle is AX, a black circle is AY and a white square is BX. What is the code for a black square?

  1. Both circles start with A, and the square starts with B: the first letter is the shape.
  2. Both white shapes end in X, the black one in Y: the second letter is the shading.
  3. Black square: B for square, Y for black.

Answer: BY

Common mistakes to watch for

  • Guessing what a letter means from one figure instead of comparing two.
  • Being distracted by a feature that changes but isn't in the code.
  • Writing the letters in the wrong order.

Encouragement

Try saying
“Compare two figures that share a letter. That's great detective work.”
Rather than
“Hurry up, it's only two letters.”

Practise codes with marked questions

Academy11+ marks every answer, shows how your child is doing in each topic and puts the right home-help note next to the ones they find hard.