Mirror image questions are solved by finding the mirror line, then flipping every part of the figure across it. Children in Year 5 now sit ASET Abstract Reasoning in Year 6, on 6 March 2027.
In our questions, a mirror image hides in a grid: one box is a flipped copy of another. That makes them Complete the Pattern questions, where your child must choose the option that fits most logically and simply into the space marked with a question mark.
Abstract Reasoning is the last of the four tests. By then your child has been working for a while, so a flip method that runs on habit saves effort.
These three are our own, from easier to harder, and drawn as pictures. Each shows the answer and the working. Hold the page up to a real mirror together and find the part each wrong option didn't flip.
Worked explanation 1
Which figure completes the pattern?
AA.
BB.
CC.
DD.
Answer: D
Answer: D
Imagine a mirror standing down the middle of each row. The middle box looks the same in a mirror, and the right box is the left box seen in the mirror: everything swaps left and right. So the flag must point left and the dot moves to the top-right corner, giving D. A moves the dot but forgets to flip the flag.
Worked explanation 2
Which figure completes the pattern?
AA.
BB.
CC.
DD.
Answer: B
Answer: B
Imagine a mirror lying flat along the middle row. The bottom row is the top row seen in that mirror, so each shape is flipped top to bottom. The flag keeps its pole on the left, but the flag part drops to the bottom, still pointing right, so the answer is B. A spins the flag round instead, which moves the pole to the right side.
Worked explanation 3
Which figure completes the pattern?
AA.
BB.
CC.
DD.
Answer: C
Answer: C
In each row, the middle box is the first box flipped left to right, and the last box is the middle box flipped upside down. In the bottom row, that flip puts the dot in the top-right corner and lays the flag along the bottom, pointing up at the left end, so the answer is C. D moves the dot but leaves the flag as it was.
Draw the mirror line first, because every other step depends on where it runs. Rough working is fine in the question booklet, but markers never see it, so a pencil line across the grid costs nothing.
Find the mirror line
A mirror standing down the middle swaps left and right. A mirror lying flat across the middle swaps top and bottom.
Notice what stays the same
A shape that is the same on both sides of the line looks unchanged in the mirror. That is a clue to where the line is.
Flip every part
The shape, any dot and any mark all move to the other side of the line.
Tell a flip from a turn
In a top-to-bottom flip, the left side stays on the left. A turn would move it.
Do two flips one at a time
When a row flips twice, work out the first flip, write it down, then do the second.
Each trap is a part of the flip that's easy to skip. As you read the working together, ask which slip below your child might make, and use its check on later questions.
Flipping only part of the figure. In the first question, one option moves the dot but leaves the flag pointing the same way. In the third, one option does the same thing after the second flip.
Turning instead of flipping. In the second question, one option spins the flag round, which moves its pole to the other side. A top-to-bottom flip keeps the pole where it was.
Using the wrong mirror line. If the answer looks right except that it is upside down, or back to front, check which way the mirror runs.
How can we practise it at home?
Start with a hand mirror and paper, so your child sees a flip happen before doing one in their head. The real test is 35 questions in 20 minutes, and the handbook says to work even more quickly than the other tests. Let speed come once flips are reliable.
Mirror drawings. Stand a mirror on the edge of a simple drawing and ask your child to draw what they see.
Fold and blot. Paint on one half of a sheet, fold it and open it: the two halves are mirror images.
Window writing. Write a word on paper, hold it up to a window from behind, and read it backwards together.
Same in a mirror? Ask which capital letters look the same when flipped left to right.
These questions show how a flip works. Practice test 1 is free and shows whether your child spots one quickly among other rules. More in our ASET abstract reasoning sample questions.