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3D Rotation

▶  Watch: how to turn a shape in your head4 min

The TWIST method in four minutes — one real question, turned in 3D step by step.

A shape built from cubes sits at the top. You pick the option that shows the same shape, turned. Same solid, new angle. Nothing added, nothing taken away.

One wrong option is always the mirror image. All twenty exam-level questions in our bank carry one, and no amount of turning will ever reach it.

The video above and the worked example below take apart the same question. One thing is different: the video shows the five options in another order, so the answer is lettered E in the video and A here. Same picture, different place in the line-up.

The method

Five beats: tally the long row, see where it joins, imagine the turn, see which way it bends, take the one left — and their first letters spell TWIST, which is what you do to the shape in your head.

  1. Step 1 of 5

    Tally the long row

    Find the longest straight row of cubes and count it. Don't count every cube: every option has the same number. A turn can move the row, but it never changes how long it is, so any option whose longest row is a different length goes.
  2. Step 2 of 5

    Where does it join?

    Look at where the other cubes meet the long row: at the very end, or further in, and how they step off. A turn never changes that either.
  3. Step 3 of 5

    Imagine the turn

    Picture the shape turning until its long row lies the same way as the long row in the options. Name the turn if it helps: a spin on the spot, a tip onto its side, or a roll from corner to corner.
  4. Step 4 of 5

    See which way it bends

    Look along the long row from its far end to the corner. The first cube steps out; does the next one turn left or right? The mirror image always turns the other way.
  5. Step 5 of 5

    Take the one left

    One option survives. It is the same shape, just turned.

These are the slowest questions on the paper. Give each one 30 to 40 seconds. Take that time back on the word questions.

💡 Worked example
Which option shows the same 3D shape as the one at the top, turned into a different position?
How to answer

Rules to watch

Watch for these traps

We looked at every wrong option in our twenty exam-level questions.

Stuck at 30 seconds? Cross out on the long row and where it joins. Then choose by the bend, even if you are unsure. Never pick the one that looks most like the top shape — that is usually the mirror.

Try these yourself

Now have a go yourself — tap the figure that is the same shape turned.

✏️ Question 1
Which option shows the same 3D shape as the one at the top, turned into a different position?
✏️ Question 2
Which option shows the same 3D shape as the one at the top, turned into a different position?
✏️ Question 3
Which option shows the same 3D shape as the one at the top, turned into a different position?

Related

All example questions come from the Brainblox question bank — practise this question type inside 25+ learning games, timed mock exams and focused practice. Brainblox is an independent app: not affiliated with, endorsed by or licensed by any exam board, school or assessment publisher, and it contains no past papers.