Mental Rotation
Mental Rotation
You will see a target shape, then four options. Pick the one that is the same shape rotated — the others are mirrored. 12 rounds. Trains visual-spatial reasoning.
How to Play
Each round shows a target shape on a 4×4 grid. Below it are four candidate shapes. Exactly one of them is the target rotated by 90°, 180°, or 270°. The other three are mirror images of the target (and possibly also rotated). Click the candidate you think matches. The mental rotation task has been used in cognitive research since 1971 to measure visual-spatial reasoning, and is closely linked to performance in geometry, navigation, and STEM fields. 12 rounds per session — accuracy and average response time are both reported.
Controls
Click or tap any of the four candidate shapes to lock in your answer. After you pick, the correct option flashes green and an incorrect pick flashes red, then the next round starts automatically.
Tips & Strategy
Pick a single feature of the shape (the longest arm, an L-corner, an isolated cell) and mentally rotate just that — full mental rotations are slow. If two candidates look identical, check chirality: imagine flipping one like a pancake — if it now matches, it was a mirror, not a rotation. Studies show mental-rotation skill improves with as little as 10 minutes a day, and benefits transfer to engineering and surgery training.