Many parents wonder how many times a child needs to practice a spelling word and whether all that repetition is actually working. The good news is that researchers have studied this question closely, and the answers are both reassuring and practical.
Science shows that seeing a word a few times is enough for most kids to recognise it while reading. But spelling it correctly from memory is a much harder job for the brain. Research generally shows that 10–25 practice attempts are needed before a new word is truly learned, and for children with dyslexia or other learning differences, that number can be anywhere from 40 to 200 repetitions (Shanahan, 2016).
That’s not a sign something is wrong. It’s simply how the brain builds a permanent “photo” of a word.
How Many Times does it take?
| Learner Type | What the Research Shows |
|---|---|
| Any child (reading) | Just 1–4 exposures can be enough to recognise a word while reading |
| Typical learner (spelling) | Around 10–15 practice attempts to spell it reliably |
| Struggling learners / dyslexia | Often 40 or more repetitions to lock it into long-term memory |
The key takeaway: reading a word and spelling a word are two different skills. Your child might breeze through a book but still mix up how to write those same words; that’s completely normal and well-documented in the research (Hepner, McCloskey & Rapp, 2017).
Why Are Some Words Harder Than Others?
“Rule-following” words (where letters sound exactly as you’d expect, like sit or jump) are learned roughly 25% faster than “rule-breaker” words (like though or friend). So if your child is struggling with tricky words, it’s not a reflection of effort, those words are genuinely harder for every brain.
There’s also a fascinating process researchers call orthographic mapping; essentially, the brain “gluing” letters to their sounds so the word becomes automatic (Dehaene & Cohen, 2015). This works best when children say the sounds out loud as they write, rather than just reciting letter names. For example, saying /b/ … /ir/ … /d/ while writing bird is more effective than spelling out “B-I-R-D.”
Spelling Practice Strategies That Actually Work
Research is clear that simply writing a word in a long column over and over down the page, is one of the least effective approaches. It leads to fatigue, boredom, and can even reinforce mistakes (Graham & Both, 1990). Instead, try switching to these evidence-backed alternatives:
Say it while you write it – Have your child say each sound (not letter name) as they write. This activates the brain’s sound-to-letter connection.
Trace – Copy – Recall – Write the word for your child to trace, then copy, then cover it up and write it from memory. This gradually moves the word from short-term to long-term storage.
Colour-code the tricky bit – Ask your child to write the “hard part” of a word in a different colour. For friend, that might be the ie, the bit most kids get wrong.
Little and often beats cramming – Spreading practice across several days is significantly more effective than one big session the night before a test (Wegener et al., 2022). Even 5 minutes a day beats 30 minutes once a week.
Use it in a sentence – Rather than practising words in isolation, have your child use them in dictated sentences. This builds real-world writing skills alongside spelling memory (Castles et al., 2022).
Active Practice
If your child needs to revisit a word many times before it sticks, that’s not a failure, it’s just how spelling works. The brain needs repeated, active practice (not passive copying) to store a word permanently. Choosing the right kind of practice matters just as much as how often you practise.
References
Graham, S., & Both, J. (1990). Spelling Instruction: Making Modifications for Students with Learning Disabilities.
Hepner, C., McCloskey, M., & Rapp, B. (2017). Do reading and spelling share orthographic representations? Evidence from developmental dysgraphia.
Mallette, M., & Barone, D. (2016). Shanahan on Literacy: An Interview with Timothy Shanahan.
Dehaene, S. (2009). Reading in the Brain: The New Science of How We Read. Penguin.
Dehaene, S., & Cohen, L. (2015). The unique role of the visual word form area in reading.
Wegener, S., Beyersmann, E., Wang, H-C., & Castles, A. (2022). Oral vocabulary knowledge and learning to read new words: A theoretical review.