Young children can commonly read 'dog' as 'bog' or write 'dat' for 'bat' and a rubber duck can help explain why! 🐥🐤 We live in a 3D world and children are born with a skill called mirror invariance. This is a natural property of the visual system. Our brains are wired to recognise a 3D object whatever way it is facing. The object does not change, it remains the same object. The duck is still a duck if we see it facing left, right, upside down or from above. Children's brains want to apply this