Colour By Code Worksheets for Teachers
Bring printable colour by numbers, letters and more foundational concepts into your classroom with fun worksheets created by teachers for teachers.
This collection of Australian curriculum-aligned teaching resources is designed to add an engaging element to your worksheets for maths, science, English and more! Best of all, each printable has been carefully reviewed and selected by an expert on the Teach Starter teaching team, so you know it's ready for your classroom, your lesson plans and your students!
Not familiar with the term colour by code, or just looking for some fresh ideas to use these worksheets in the classroom? Read on for a primer from our teacher team!
What Is a Colour By Code Worksheet?
Haven't heard the term colour by code? That's OK! Maybe you've heard of colour by numbers or colouring by maths? Or maybe you call them mystery picture worksheets?
These fun worksheets allow students to pull out their crayons or coloured pencils to colour a picture based on a predetermined colour key or code, where each colour corresponds to a specific number or symbol. The goal is to match the numbers or symbols on the picture with the corresponding colours to reveal a mystery picture.
Colour by code refers to not just colour by numbers but also colour by parts of speech, synonyms, addition and other educational concepts!

History of Colour by Numbers
Ever wonder how colouring by numbers became so popular?
The exact history of these sheets is hard to track down, but as far back as the early 20th century, people were 'painting by number' as a recreational activity. Then an activity mainly for adults, it involved painting pre-drawn canvases with numbered sections that corresponded to specific paint colours.
In the 1950s, an American artist called Dan Robbins developed a commercial version of the concept called 'Paint by Numbers' that helped the idea go mainstream and give life to what we now call colour by numbers in schools! His kits included pre-printed canvases, numbered paints and brushes, and his idea was soon adapted to make colouring books for kids.
In the versions for kids, numbers or symbols were added to line drawings instead of canvases, and young children could easily colour within the lines using crayons or coloured pencils!
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Easter Hundreds Board Mystery Pictures
A set of 9 Easter-inspired mystery hundreds charts.
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Colour By Code Worksheet – Synonyms and Antonyms
Reveal the hidden picture and practise using synonyms and antonyms with a vocabulary colour-by-code worksheet.
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Valentine's Mystery Picture Addition
Have fun with your Valentine’s Day Maths with an addition mystery picture worksheet.
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Colour It! Need or Want Worksheet
Identify examples of needs and wants with this colour-coding activity.
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Colour It! Good or Service Worksheet
Identify examples of goods and services with a colouring activity.
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100th Day Mystery Picture Worksheets
Follow the colour-coded number guides to fill in the hundreds chart square and reveal 3 special 100th Day of School mystery pictures.
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Colour by Syllable Type - Worksheet
Practise identifying the six syllable types in common words with this colour-coding activity.
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I Spy Syllable Types - Worksheets
Identify and colour words according to their syllable types with this set of six worksheets.
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Colour By Vowel Sound - Winter Worksheet
Use a chilly colour by vowel sound worksheet to bring a bit of Winter into the classroom this season.
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Gingerbread Colour the Vowels Worksheet
Use a Christmas-themed colour the vowels worksheet to help your students differentiate between long and short vowel sounds.
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Christmas Colour by Number Worksheets
Use knowledge of numbers to 10 to colour in these Christmas-themed colour by number worksheets.
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100 Chart Mystery Picture Puzzle
Practise identifying numbers within 100 with this set of 44 number cards and hundreds board.
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Roll, Add and Colour - Easter Basket
A fun roll, add and colour sheet featuring an Easter basket.
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Roll, Add and Colour - Easter Bilby
A fun roll, add and colour sheet featuring an Easter bilby.
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Multiples of 1 — Fact Fluency Pack
Build multiples of 1 fact fluency with this engaging worksheet pack, designed to help teachers reinforce multiplication skills through fun, low-prep activities.
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Colour by Numbers - Multiplication and Division Teaching Resource Pack
A set of engaging colour by number worksheets to consolidate your students’ understanding of multiplication and division facts.