How to spell TOOTHBRUSH
T-O-O-T-H-B-R-U-S-H
TOOTHBRUSH has 10 letters. The fastest way to make it stick is a picture: a Trophy, then an Owl, then an Oven, and so on through the word.
There is exactly one hard thing about toothbrush, and your child will get it wrong in the same place every time. TOOTHBRUSH doubles a letter that you only ever hear once, so nothing in the sound of the word tells them to write it twice. Repetition does not fix this, because they are repeating the version they already believe. A picture does.
Say it, break it, build it
Before the story, give the word a shape. TOOTHBRUSH does not break cleanly into chunks, so say it as one piece and put the effort into the letters themselves:
TOOTHBRUSH
- Say it. Read TOOTHBRUSH out loud together, slowly, stretching the sounds. Let your child hear where the word bends.
- Break it. Have them tap the sounds out on their fingers. Tapping turns a spelling into a physical thing, which is a second memory route alongside seeing and hearing it.
- Build it. Now bring in the story below. Each letter gets a character, and your child rebuilds TOOTHBRUSH by retelling the story rather than by trying to picture the word.
The TOOTHBRUSH story
T Trophy 🏆 — Let's spell TOOTHBRUSH! It all starts with a wobbly Trophy.
Ask your child: What do we start with?
O Owl 🦉 — Trophy paints a picture of Owl.
Ask your child: What does Trophy paint?
O Oven 🍞 — Owl discovers Oven hiding in a cave.
Ask your child: What is hiding in the cave?
T Tent ⛺ — Oven hides behind a giant Tent.
Ask your child: What does Oven hide behind?
H House 🏠 — Tent rides a House to the castle.
Ask your child: What does Tent ride?
B Boot 👢 — House rides a Boot to the castle.
Ask your child: What does House ride?
R Rainbow 🌈 — Boot looks behind the door and finds Rainbow!
Ask your child: What is behind the door?
U UFO 🛸 — Rainbow puts on an UFO and looks great!
Ask your child: What does Rainbow put on?
S Sock 🧦 — UFO jumps over a Sock!
Ask your child: What does UFO jump over?
H Hat 🎩 — So Sock and Hat become best friends!
Ask your child: Who becomes best friends with Sock?
Make your own TOOTHBRUSH story, free →
Why this works: A doubled letter is remembered as an image far more reliably than as a rule. Two of the same character standing next to each other in a story is a picture your child can count, which is exactly the thing the sound of TOOTHBRUSH refuses to tell them.
Why TOOTHBRUSH is harder than it looks
A double letter that sounds single
TOOTHBRUSH has a double OO, but you only hear one. Nothing in the sound of the word tells a child to write the letter twice, so this is almost always where the mistake lands.
Two vowels, one sound
The OO in TOOTHBRUSH act as a team: two letters making a single sound. Because a child only hears one sound, they often write only one letter.
How children usually get TOOTHBRUSH wrong
These are not careless mistakes. Each one is a predictable slip, and knowing which one your child makes tells you exactly where to put the attention.
| What they write | What happened |
|---|---|
| tothbrush | the double O collapsed to one, because you only hear one |
If your child writes one of these, resist re-drilling the whole word. Point at the exact spot, retell just that part of the story, and let them fix it themselves. Correcting the one letter beats rewriting the word five times.
A 5-minute routine for TOOTHBRUSH tonight
You do not need a worksheet or a full study session. This is the whole thing:
- Minute 1 — count it. Say TOOTHBRUSH slowly and ask how many times they hear the O sound, then show them the written word. That gap between "I hear one" and "there are two" is the whole lesson, and it lands much harder when they discover it than when you announce it.
- Minute 2 — ask it back. Go through the prompts: "What do we start with?" Let your child answer from memory. If they stall, give the picture, not the letter.
- Minute 3 — write it. Have them write TOOTHBRUSH once, saying each character as they go. Once, not five times. Writing it repeatedly stops being retrieval after the first go and becomes copying.
- Minute 4 — break it on purpose. Write it wrong yourself (try "tothbrush") and ask them to catch you. Spotting the error is harder than producing it, and children love being the one who is right.
- Minute 5 — leave it. Stop while it is still fun. Come back tomorrow for 60 seconds and again in three days. Spacing is what moves it into long-term memory; more minutes tonight will not.
If it goes wrong: when your child gets TOOTHBRUSH wrong on the third or fourth go, the answer is almost never more repetitions. Change the character instead. If Trophy is not landing, let them pick their own thing beginning with T — their own choice always sticks better than ours, and it hands them control of a task that usually happens to them.
Other words with double letters
TOOTHBRUSH is not a one-off. These words fail in exactly the same way, so a child who cracks the pattern here gets the rest cheaper:
Questions parents ask about TOOTHBRUSH
How do you spell toothbrush?
TOOTHBRUSH is spelled T-O-O-T-H-B-R-U-S-H. The fastest way to make it stick is a picture: a Trophy, then an Owl, then an Oven, and so on through the word.
Why does my child keep getting toothbrush wrong?
TOOTHBRUSH has a double OO, but you only hear one. Nothing in the sound of the word tells a child to write the letter twice, so this is almost always where the mistake lands.
How long should we practise toothbrush?
Five minutes, then stop. The double letter in TOOTHBRUSH tends to come back wrong once before it settles, so expect a wobble on day two and treat it as normal rather than as evidence the method is not working.
Is this suitable for a Primary 1 or Primary 2 child in Singapore?
Yes. TOOTHBRUSH works with the weekly list your child brings home from school, and the method suits ages 5 to 8. Nothing here depends on a particular syllabus: type whatever word is on this week's list and the story is built for it.
My child made up their own story. Should I let them?
Let them, every time. A story your child invents is remembered better than one handed to them, because inventing it is itself an act of retrieval. Our version is a starting point, not the correct answer — if they replace every character with dinosaurs, the spelling still comes out right.
Any word. One story. Free.
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