Free Color by Shape Worksheets for Kindergarten – Read the Key and Color

These free printable color by shape worksheets give preschool and kindergarten children ten pages that ask three things at once: recognise the shape, read the key, and colour accordingly. A key at the top of every page pairs each shape with a colour – circle, square and triangle – and a grid of twelve outline shapes underneath has to be coloured to match.

The important detail is that the key changes on every page. Circles are purple on the first sheet, green on the second and red on the last. A child cannot learn once that circles are purple and then colour nine more pages from memory; they have to look up at the key each time. That turns a colouring activity into a following-instructions activity, which is a far more useful thing to practise.

What Is in This Free Color by Shape Worksheet Pack

• Ten printable worksheets, each with its own key.
• Three shapes throughout: circle, square and triangle.
• Twelve outline shapes on every page, arranged in a grid.
• A different shape-to-colour key on each of the ten pages.
• No reading, counting or writing needed – only looking and colouring.
• A separate PDF for every page – no sign-up, no email address, no cost.

The 10 Color by Shape Worksheets

There is no need to work through them in order. One page is a complete session for most four year olds.

Worksheet 1 – Color by Shape (Set 1)

The first page. Read the key together before a single crayon comes out – on this sheet the circles are purple, the squares green and the triangles red.

Worksheet 2 – Color by Shape (Set 2)

A new key. The circles are green this time, which is the moment most children discover that the colours are not fixed.

Worksheet 3 – Color by Shape (Set 3)

Another key, another set of pairings. Children who coloured page 2 from memory will get this one wrong, and that is the lesson.

Worksheet 4 – Color by Shape (Set 4)

The shapes are mixed more evenly across the grid, so there is no run of identical shapes to coast through.

Worksheet 5 – Color by Shape (Set 5)

A page where two of the three colours are close in shade, which makes the key worth checking twice.

Worksheet 6 – Color by Shape (Set 6)

Halfway. By now a child should be glancing up at the key rather than guessing.

Worksheet 7 – Color by Shape (Set 7)

The shapes repeat in a less predictable order, so counting along the row stops helping.

Worksheet 8 – Color by Shape (Set 8)

Another new key. Ten different keys across ten pages is the whole design of this pack.

Worksheet 9 – Color by Shape (Set 9)

Nearly the last. Most children now read the key without being told to.

Worksheet 10 – Color by Shape (Set 10)

The final page, with the circles red, the squares blue and the triangles green.

Reading a Key Is a Skill of Its Own

The little box at the top of these pages is a legend, and legends turn up everywhere in school from this point on: on picture graphs, on maps, on diagrams, in science. The idea behind all of them is the same – a small table tells you what the big picture means, and you have to keep going back to it.

That habit does not come naturally. A four year old’s instinct is to start colouring straight away and consult nothing. Ten pages with ten different keys build the habit quietly, without anyone having to explain what a legend is.

When Children Are Ready for These Worksheets

These pages suit children from about three and a half to six years old. A child needs to be able to tell a circle from a square from a triangle, and to know or be told the colour names – nothing else. There is no reading, counting or writing on any page.

In American classrooms the shape half of this sits inside the kindergarten geometry standard on identifying and naming shapes (Common Core K.G.A.2). The key-reading half is not a numbered standard anywhere, but it is what makes picture graphs possible later on.

How to Use These Worksheets

1. Print one page and read the key out loud together: “circles are purple, squares are green, triangles are red”.
2. Point at the first shape and ask which colour it needs, before any colouring starts.
3. Work along the rows rather than jumping about – it makes checking easier afterwards.
4. If your child stops asking and starts guessing, cover the grid with a hand and read the key again.
5. At the end, count how many of each shape were coloured. It costs nothing and adds a counting exercise.

Three Things to Watch For

Colouring from memory

The mistake this pack is built to catch. A child who remembers the last page’s key will colour confidently and be wrong throughout. Check the first two shapes before letting them continue.

Colouring by position

Some children decide the top row is one colour and the next row another. Working along rows is fine; deciding the colour by the row is not.

Giving up on the triangles

Triangles have the smallest area of the three shapes and are fiddly to fill in. A thicker crayon solves this faster than any amount of encouragement.

Printing Tips

• Choose Actual size or Fit to page so the boxes stay big enough to write in.
• Each page fills one sheet and works on both US Letter and A4 paper.
• Slip a page into a plastic wallet and use a dry-wipe pen to reuse it with more than one child.
• The key is printed in colour and needs to stay that way – this is the one pack on the site that does not work in greyscale.

Frequently Asked Questions

What age are these color by shape worksheets for?

About three and a half to six years old – preschool, pre-K and kindergarten.

Is the key the same on every page?

No. Each of the ten pages has its own key, which is what stops children colouring from memory.

Which shapes are used?

Circle, square and triangle on all ten pages.

Can I print these in black and white?

Not usefully – the key at the top has to be in colour for the page to make sense.

Do I need to sign up to download these?

No. Every PDF downloads immediately, with no account, no email address and no cost.

Can I use these in my classroom?

Yes, they are free to print for home and classroom use. Please do not sell them or re-host the files elsewhere.

More Free Color and Shape Worksheets

• Free Color by Number Worksheets – Color and Count
• Free Shape Recognition Worksheets – Circle All the Shapes
• Free Learn the Colors Worksheets for Preschool – 9 Colors
• Free Sorting Worksheets – Sort by Color and Shape
• Free Count and Graph Worksheets – Picture Graphs
• Free Trace the Shapes Worksheets for Preschool