Letter B
Preschool · 3–5Color the big letter B, with Ball, bear and butterfly to name as you go. Lowercase b is the mirror of d, and mixing them up is the most common letter reversal there is. The two-fists trick, where the left hand makes a b and the right makes a d and together they spell bed, is the fix that tends to stick. Filling a letter in at this size does something tracing does not: the child's eye follows the whole outline slowly, so the shape registers before a pencil ever has to reproduce it. Say the sound rather than the letter name while you color — the sound is what reading actually needs. Print it on A4 or US Letter, or color it online with tap-to-fill.
B and d: the reversal every child makes
Lowercase b and d are mirror images, they appear constantly in early reading, and confusing them is not a warning sign — it is the single most common letter reversal in the English-speaking world, and it is normal right up to about age seven. The reason is simple. Before school, a child learns that a chair is a chair whether it faces left or right. Letters are the first objects in their life where facing the other way makes it a different thing entirely.
The trick that works best is a physical one rather than a rule. Make two fists, thumbs up, and hold them in front of you: the left hand makes a b, the right makes a d, and together they spell bed — the bed your child can then picture the word sitting inside. Colouring the big letter here is a good moment to do it, because the shape is in front of them at a size they can trace with a finger.
Hearing the B sound
B is a voiced stop: the lips press shut, the voice switches on, and the sound pops out. Ask your child to hold a finger on their throat while saying ball, bear and butterfly — they will feel the buzz. Doing the same with p gives no buzz at all, and that contrast is what makes the two easy to tell apart by ear even when the page keeps mixing up b and d by eye.
Frequently asked questions
- At what age should I worry about b and d reversals?
- Reversals are expected until around seven. If they are still frequent and persistent after that, and reading is also a struggle, it is worth mentioning to your child's teacher — but on its own, a reversed b in a five-year-old's writing tells you nothing except that they are five.
- Does correcting every reversal help?
- No, and it usually backfires by making writing feel like a test. Correct it once, cheerfully, with the bed trick, then let the rest go. The reversals fade as reading volume goes up.