What Is Rainbow Writing? (And the Mistake That Undoes It)

Short answer: Rainbow writing is a handwriting activity where a child traces the same letter or word several times, each pass in a different colour, until it looks like a rainbow. It is mainly a handwriting exercise rather than a spelling one — the point is repeated practice at forming the letter. Done without watching how the child starts each letter, it can reinforce the wrong formation rather than the right one.

It is popular because it works on the thing that makes early handwriting practice difficult: repetition is necessary and repetition is boring. Changing colour on each pass turns ten attempts at the letter a into something a five-year-old will actually do ten times.

What it is actually training

It is worth being clear about the mechanism, because that determines how to run it and what to expect from it.

Colleen Beck, a pediatric occupational therapist writing at The OT Toolbox, describes it as “a great strategy for practicing handwriting,” on the basis that “kids get multiple attempts at forming letters, working on motor planning, pencil placement, and repetition (practice) that very much plays a part in handwriting legibility.”

Those three things are the whole benefit, and they are motor skills rather than literacy ones:

• Motor planning — working out and rehearsing the sequence of movements a letter requires, so it becomes automatic.
• Pencil placement and control — staying on a line, managing pressure, and starting in the right place.
• Repetition without protest — the practical contribution of the colours, which is not nothing.

Understanding it as handwriting practice rather than spelling practice changes what you do with it. It is a good fit for a letter a child forms awkwardly, and a weaker fit for a word a child cannot yet read.

The mistake that makes it backfire

This is the part usually left out, and it matters more than any of the setup advice.

Repetition entrenches whatever is being repeated. If a child is forming a letter incorrectly — starting at the bottom, going the wrong way round, lifting the pencil where they should not — then tracing it six times in six colours does not fix it. It rehearses the error six times.

The OT Toolbox is direct about this: “kids can develop bad letter formation habits” with rainbow writing, and “it can be easy to start a poor muscle memory for writing the letters if they start at the wrong starting point or form the letters incorrectly.” It adds the detail that makes it easy to spot — “when they rainbow write each letter and it progressively gets worse, this can create an incorrect motor plan.”

The practical version for a classroom is short:

• Watch the first pass, not the finished sheet. A completed rainbow tells you nothing about how it was made. Where the child put the pencil down is the thing to check.
• Check the starting point before they repeat. Correcting it once at the start is worth more than any amount of feedback afterwards.
• Watch for deterioration across passes. If each colour is worse than the last, stop — the activity is now practising the wrong movement.
• Fewer passes done well beat more done badly. Three careful traces are better practice than seven rushed ones, whatever the rainbow looks like.

This is also why rainbow writing works better as a supervised small-group activity than as an independent worksheet handed out to a whole class — which is how it is most often used.

How to set it up

The materials are deliberately minimal, which is much of the appeal.

• Lined paper, or a tracing sheet with the letters already formed
• Crayons or coloured pencils — at least three colours, ideally the rainbow set
• A target: a letter, a number, a shape, or a sight word

Then, in order. Choose what they are practising — for handwriting purposes, a letter they find difficult is a better choice than one they already form well. If it is a word rather than a letter, make sure they can say it and recognise it first; tracing a word a child cannot read is a drawing exercise.

Write or print the target clearly and large. For children who are not yet writing independently, a bold pre-formed letter to trace over gives them the correct shape to follow. For older or more confident children, they can write the first pass themselves and trace their own.

Then let them trace, changing colour on each pass. Some teachers specify the colour order, others let children choose — both work, and choosing tends to hold attention longer. Perfect lines are not the goal, and the slight offsets between passes are what make the rainbow effect.

Five to ten minutes is usually enough. It is a warm-up or a station activity rather than a lesson.

Variations worth trying

• One colour per letter. For a whole word, a different colour for each letter instead of each pass — useful for showing where letters begin and end.
• Roll a die for the colour. Numbers one to six map to six crayons. Adds a turn-taking element and removes the choosing.
• Limit the palette. Three colours means three passes, which suits children who lose accuracy over longer repetitions.
• Change the surface. Chalk on a board or pavement, or whiteboard markers, work the same motor skills at a larger scale — often easier for children still developing pencil control.
• Colour-code the tricky part. One colour for the whole word and a second for the letter they keep getting wrong makes the target explicit.

When to use it, and when to use something else

Rainbow writing is one option among several, and it is better at some jobs than others.

The pattern is that it is a practice activity rather than a teaching one. It consolidates something the child has already been shown, which is why the modelling step matters and why handing the sheet out cold tends to disappoint.

What it does and doesn’t do

Rainbow writing is frequently described as improving spelling. That claim is worth handling carefully, because it is not really what the activity trains.

Repeatedly tracing a word gives a child exposure to its letter sequence, and that is not worthless. But spelling is largely learned through sound-to-letter mapping, pattern recognition and retrieval practice — trying to produce the word from memory and checking. Tracing a word already in front of you asks for none of that. A child can complete a beautiful rainbow of a word and still not be able to write it unaided a minute later, because copying and recalling are different tasks.

So the honest framing is this. Use it for handwriting and letter formation, where the repetition is the point and the evidence from occupational therapy practice is straightforward. Treat any spelling benefit as incidental, and if spelling is the goal, cover the word and ask the child to write it — then check. That takes ten seconds and does the thing rainbow writing is often credited with.

It is also worth noting what it is genuinely good at beyond the motor skills: it holds attention. For a child who resists handwriting practice, an activity they will voluntarily repeat is worth a great deal, and that alone justifies its place in a kindergarten classroom.

Ready-made worksheets. We produce a set of 95 rainbow writing worksheets covering two- to five-letter sight words, available as a paid download from our teaching resources page alongside several free printables. If you would rather make your own, a bold pre-formed letter on lined paper does the same job.

Frequently asked questions

What age is rainbow writing for?

It is most used in preschool through second grade, where letter formation is still being established. It also has a place with older children who are working on specific handwriting difficulties, though the colour framing usually needs dropping for them.

How many colours should they use?

Three to seven. Seven gives the full rainbow, but accuracy tends to drop off over that many passes, and a deteriorating letter is the thing to avoid. If quality falls after three, use three.

Is rainbow writing good for dyslexic learners?

It can help with the handwriting side, since multisensory, repeated letter formation is a common recommendation. It is not a reading or spelling intervention, though, and should not substitute for a structured literacy programme. For a child with an identified need, follow the specialist’s plan rather than adding activities alongside it.

Should they trace over the same letter, or rewrite it each time?

Tracing over the same letter is the standard version and produces the rainbow effect, which is the part children respond to. Rewriting it alongside is harder and arguably better practice, because each attempt starts from nothing rather than following an existing line. A reasonable compromise for children who are ready: trace twice to establish the shape, then write it once unaided in the next colour. That gets both the repetition and one attempt at genuine recall.

Can it be done without worksheets?

Easily. Write the letter boldly on lined paper and hand over the crayons — that is the entire activity. Worksheets save preparation time when you want a whole set of sight words ready to go, but they are a convenience rather than a requirement.

Keep reading
Teaching resources and printables — free worksheets and downloads.
What are text features? — another early-literacy explainer, with a free worksheet.
Skills of a kindergarten teacher — where activities like this fit in the wider job.
Assessment tools for kindergarten — how to check whether it is working.