Unplugged Coding: Follow the Color Algorithm

Teaching early coding doesn’t have to involve screens or computers. Unplugged coding activities are becoming a popular choice in classrooms and homes across the United States because they help children learn problem-solving and sequencing in a simple, hands-on way. This worksheet is designed to introduce young learners to the idea of following an algorithm using colors and numbers.

What This Activity Teaches

This activity supports several early-learning skills, including:

• Understanding that an algorithm is a set of steps to follow

• Matching numbers to colors

• Strengthening focus and attention

• Building fine motor and coloring skills

• Practicing early coding and logic thinking

• Learning to complete a task from start to finish

The goal is not to finish fast, but to follow the instructions correctly, just like real coding.

How to Use the Worksheet

Using this worksheet is simple and works great for independent or guided work.

1. Review the Color Key
   At the top or side of the worksheet is a color key. Each number is connected to a specific color.

2. Read the Grid
   The grid contains numbers inside individual squares.

3. Match and Color
   Students look at each number, check the key, and color the square with the matching color.

4. Work Through the Entire Grid
   Children continue matching and coloring until every square is complete.

5. Check for Accuracy
   When finished, students can review their work to make sure they followed the algorithm correctly.

This activity works well for morning work, math centers, early finishers, STEM time, or at-home learning.

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Why This Activity Works

US teachers love activities like this because they are:

• Easy to prepare

• Screen-free

• Great for mixed-ability groups

• Self-checking

• Engaging for both younger and older learners

• Perfect for reinforcing early coding concepts in a friendly, playful way

Children enjoy the calm and structure this activity provides, and it helps them build confidence while learning something meaningful.

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