Color By Code Worksheets for Teachers
Bring printable color by numbers, letters and more foundational concepts into your classroom with fun worksheets created by teachers for teachers.
This collection of curriculum-aligned teaching resources is designed to add an engaging element to your worksheets for math, science, ELA 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 color 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 Color By Code Worksheet?
Haven't heard the term color by code? That's OK! Maybe you've heard of color by numbers or coloring by math? Or maybe you call them mystery picture worksheets?
These fun worksheets allow students to pull out their crayons or colored pencils to color a picture based on a predetermined colour key or code, where each color corresponds to a specific number or symbol. The goal is to match the numbers or symbols on the picture with the corresponding colors to reveal a mystery picture.
Color by code refers not just to color by numbers but also coloring by parts of speech, synonyms, addition and other educational concepts!

Coloring by shape is a type of color by code worksheet!
History of Color by Numbers
Ever wonder how coloring 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 colors.
In the 1950s, an 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 color by numbers in schools! His kits included pre-printed canvases, numbered paints and brushes, and his idea was soon adapted to make coloring books for kids.
In the versions for kids, numbers or symbols were added to line drawings instead of canvases, and young children could easily color within the lines using crayons or colored pencils!
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Color by Letter Worksheet Pack
Help students with their recognition of the letters – s,a,t,p,i,n and c,k,e,h,r with this color by letter worksheet pack.
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Is It Half? Differentiated Fractions Coloring Sheet
Introduce your students to the concept of halves as well as equal and unequal parts with this fractions coloring sheet.
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Adding to Multiples of Ten up to 100 – Halloween Mystery Picture
Celebrate the coming of Halloween and practice adding 2-digit numbers up to 99 with a set of addition color by number worksheets.
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Fall Color By Part of Speech Worksheet - Nouns, Verbs, Adjectives, Adverbs
Use this color by part of speech worksheet as a fun fall activity with your students.
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Color the Synonyms and Antonyms Worksheet
Explore vocabulary with this synonyms and antonyms worksheet for 3rd and 4th grade students.
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Color by Number – Multiplication Fact Practice (Mixed)
Practice multiplication facts through 12 with this fun color by number worksheet.
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Subitizing Worksheets for Kindergarten
Incorporate these subitizing worksheets for kindergarten into your lessons to give your students practice subitizing collections up to 12.
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Subtraction within 20 - Color by Number Worksheet
Reveal the mystery picture by solving the subtraction problems with a color-by-number worksheet.
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Fall Color by Part of Speech - Nouns and Verbs Worksheet
Use this fall color by part of speech worksheet to review nouns and verbs.
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Grammar Grid Mystery Picture Worksheet- Nouns, Verbs, Adjectives (Bunny)
Follow the color-coded parts of speech guide to fill in the word grid and reveal a mystery image.
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Color by 2-D Shape Worksheets
A set of five color by shape worksheets.
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Easter Addition Coloring Pages (Differentiated)
Grab a fun set of Easter Addition Coloring pages to help your little learners practice adding 1 and 2-digit numbers without regrouping.
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Color by Number Addition and Subtraction Worksheets
Combine math and art with our color by number addition and subtraction worksheets that feature problems with solutions up to 20.
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Color By Code - Simple or Compound Sentences Worksheet
Use a Simple or Compound Sentences Color By Code worksheet to help your students practice identifying simple and compound sentence types.
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Color By Number Fire Truck Coloring Page
Build number identification skills with a Color by Number Fire Truck Coloring Page.
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Unit Fraction Coloring Sheet
Crack the color code and practice unit fractions all while coloring some fun images.
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Time to the Minute - Color by Code Worksheet
Review how to tell time to the minute with a fun Color By Code 3rd Grade math worksheet.
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Weathering, Erosion and Deposition Color By Code Worksheet
Guide your students to differentiate between examples of weathering, erosion and deposition with this color-by-number science worksheet.
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Multiplication Color By Number Worksheet Pack
Use this set of multiplication color-by-number worksheets to help your students learn these important number facts.
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Real-World 3D Shapes - Coloring Worksheet
Explore three-dimensional shapes in the real world with this coloring worksheet.
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Equivalent Fractions – Mystery Picture Worksheet
Determine equivalent fractions while using the color guide to reveal a mystery image.
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Parts of Speech - Color by Code Worksheet
Follow the color code to reveal the mystery image with a fun color-by-code worksheet.
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Football Mystery Grid Worksheet - Parts of Speech
Follow the color-coded parts of speech guide to fill in the word grid and reveal a Football-themed mystery image.
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What is the Syllable Type? - Color By Syllables Worksheet
Practice identifying the six syllable types in common words with this color-coding activity.
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100 Chart Mystery Picture Puzzle
Practice identifying numbers within 100 with this set of 44 number cards and hundred chart.
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Color by Number - Division Facts of 2, 3, 5, and 10
An engaging activity to review your students' understanding of division facts.
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Color by 2-D Shape – Activity Sheets
A detailed set of color by shape activities.
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Color by Parts of Speech - Nouns, Verbs, and Adjectives - Octopus
A fun activity to use when learning about nouns, verbs, and adjectives.
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Crazy Boxes – Multiplication Facts of 4
Create a color pattern using multiplication facts of 4 with this color by number worksheet.
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Crazy Boxes – Multiplication Facts of 5
Create a color pattern using multiplication facts of 5 with this color by number worksheet.
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Color by Sight Words - 4 Words - Butterfly
A fun coloring activity to use when working with sight words.
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Color by Sight Words - 4 Words - Ladybug
A fun coloring activity to use when working with sight words.