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11+ Non-Verbal Reasoning · Year 5–6 · Free lesson

Nets and Cubes

Which faces end up opposite when a net folds? Two structural rules — touching squares can't be opposite, strip-of-three ends must be — answer most cube questions without folding anything.

N8Nets and Cubes
Fold the net in your head.
Cube nets: adjacent squares share an edge; squares two apart in a strip end up opposite.
The cross net and its opposite pairs.
ACBDEF
Opposite pairs: A↔E · C↔D · B↔F — never neighbours in the net.
Rule: squares that TOUCH in the net can never be opposite faces on the cube.
1

Learn the 3 Rules

1Touching squares meet at an edge.

Neighbours in the net become neighbouring faces — never opposites.

touch = adjacent

2A strip of three: ends are opposite.

In any straight line of three squares, the two ends face each other on the cube (C and D here).

skip one = opposite

3Fold the cross to check.

B front → A top, E bottom, C left, D right, F back. Three opposite pairs: A/E, C/D, B/F.

B front, F back
💡 Key IdeaMost cube questions die at rule 1: an option showing two net-neighbours on opposite faces is impossible — cross it off instantly.
2

Worked Example

Using the net above: which face is opposite C, and can A and B be opposite?

Opposite C
C and D sit at the ends of the row C-B-D
D
A and B?
A touches B in the net → they share an edge on the cube
never opposite
3

Watch Out! Common Mistakes

Opposite means far away in the net.

Not distance — structure! F looks far from B but IS its opposite; A looks far from E and IS its opposite. Use the skip-one rule, not eyesight.

Forgetting orientation on faces.

Patterns turn! When a face folds round, its pattern rotates with it — an arrow pointing up in the net may point sideways on the cube.

Trying to fold all six at once.

One base first! Fix the centre square as the front, fold neighbours one at a time. Whole-net folding overloads working memory.

Cheat Sheet

NETS AND CUBES
  1. Net neighbours = cube neighbours, never opposites.
  2. Straight strip of three: the ends are opposite.
  3. Cross net: A/E, C/D, B/F opposite pairs.
  4. Fold from a fixed base, one square at a time.
Kill rule: options putting net-neighbours opposite are impossible.
📄 Free printable: Download the Nets and Cubes cheat sheet (PDF) — keep it by your child's desk.

Quick summary

Frequently asked questions

How do you find opposite faces on a cube net?

Use the skip-one rule: in any straight line of three squares, the two ends fold to opposite faces. And touching squares can never be opposite.

What's the fastest elimination in cube questions?

Any option showing two squares that touch in the net sitting on opposite faces — impossible, cross it off.

Why do patterned faces cause errors?

Because patterns rotate as faces fold round — an arrow's direction on the cube usually differs from its direction in the flat net.

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