Color by Number (Dolphin)
Written by Adi Ackerman, Head Teacher
"Color by Number (Dolphin) - Happy Drops" is written for Kindergarten (Ages 3-6), and it covers Common Core K.CC.A.3. If your little one is a year younger but already steady on numbers, the page still works. You may just need to read the instructions out loud. And if they are older and learning numbers never quite stuck, this is a short review rather than busywork.


Free printable color by number (dolphin) (happy drops) worksheet for kindergarten students. Part of our learning numbers numbers collection. Aligned to Common Core standards.
How do I use this worksheet?
Before handing out the worksheet, briefly introduce the concept with a short oral warm-up or a visual model on the board. Let students work through it with your modeling first (do the first item together on the board), then try the rest with a partner, encouraging them to talk through their thinking: "What strategy are you using? How do you know that is right?" After completing the worksheet, review any missed problems together and discuss the reasoning rather than just the answer. For extra support, let students use manipulatives or draw pictures alongside the written problems. These learning numbers worksheets work well as daily practice, homework, or a focused review activity.
What students will practice
- Students will recognize and apply learning numbers concepts using counting objects, ten-frames, and pictures.
- Students will solve problems involving learning numbers with increasing accuracy and confidence.
- Students will connect learning numbers skills to real-world situations and explain their reasoning clearly.
Curriculum Links
Common Core State Standards
Counting and Cardinality · Kindergarten
Standard: Write numbers from 0 to 20. Represent a number of objects with a written numeral 0–20 (with 0 representing a count of no objects).
View all K.CC.A.3 worksheets →Find this in the curriculum
Browse the grade, subject, and topic this belongs to.
FAQ
How do I use this learning numbers worksheet?
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Before handing out the worksheet, briefly introduce the concept with a short oral warm-up or a visual model on the board. Let students work through it with your modeling first (do the first item together on the board), then try the rest with a partner, encouraging them to talk through their thinking: "What strategy are you using? How do you know that is right?" After completing the worksheet, review any missed problems together and discuss the reasoning rather than just the answer. For extra support, let students use manipulatives or draw pictures alongside the written problems. These learning numbers worksheets work well as daily practice, homework, or a focused review activity.
What does this worksheet teach?
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These learning numbers worksheets for Kindergarten give students the structured, hands-on practice they need to build confidence and fluency. Students work through a range of problem formats, from visual models and diagrams to written equations and word problems, so they encounter learning numbers from every angle. Each worksheet is designed to build on prior knowledge while introducing the level of challenge appropriate for Kindergarten. Practicing learning numbers at this stage strengthens the mathematical foundations that support more advanced concepts in later grades.
Can I use this learning numbers worksheet for homeschool or classroom?
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Yes, both. We made it for Kindergarten numbers, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with learning numbers. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.
What picture does this color by number make?
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A dolphin. The picture only appears if every region is matched to the right number, so your child gets immediate feedback: a dolphin that looks wrong usually means a numeral was misread somewhere.
Is color by number actually math practice?
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Yes, and more than it looks. Every region means reading a numeral, holding it in mind, finding it in the key, and acting on it. That is numeral recognition repeated dozens of times, in a format children will sit with far longer than a page of numbers.
My child colors the dolphin however they like. Does that matter?
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It depends what you want from the page. If the goal is numeral recognition, gently steer back to the key, and check they can read the numerals in it. If they are tired and coloring for pleasure, let it go and come back another day. A resented worksheet teaches very little.
How many Kindergarten learning numbers worksheets are there?
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90 printable worksheets, all free to preview. Downloads are included with a ClassWeekly free trial, and every page prints on standard 8.5 x 11 paper.
What age are learning numbers worksheets for?
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These are written for Kindergarten students, roughly ages 3-6. Many teachers also use them a grade up for review or a grade down as an extension, so use the preview to judge the fit for a particular child.
Are these learning numbers worksheets aligned to Common Core?
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Yes. Each one shows the Common Core code it covers on its own page, so you can check the alignment yourself rather than taking our word for it.
Can I use these learning numbers worksheets for homeschool?
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Yes. Nothing here assumes a classroom of 25, so they work the same one-to-one at the kitchen table as they do in a Kindergarten classroom, a literacy centre, or a tutoring session.
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Worksheet Details
| Grade | Kindergarten |
| Subject | Math |
| Topic | Numbers |
| Standard | K.CC.A.3 |
| Pages | 1 page |
| Difficulty | Medium |
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