Make unplugged coding, algorithms, debugging, logic puzzles, loops, conditionals, binary code, data sorting, pixel coding, and prompt thinking easy to teach with this Coding Challenge Box worksheet pack! This low-prep, print-and-go resource helps students practice computer science concepts without screens through engaging coding puzzle activities and lock-code challenges.

Students will work through clear, print-friendly coding puzzles with simple directions, visual supports, and structured problem-solving tasks. Activities include ordering algorithm steps, choosing missing steps, debugging code sequences, identifying repeated commands, using if/then logic, solving input-output rules, completing pattern puzzles, decoding binary lock codes, sorting data, choosing stronger prompts, following pixel code instructions, and completing a final coding challenge box review.

This resource is perfect for 2nd Grade, 3rd Grade, 4th Grade, 5th Grade, STEM lessons, computer science, coding centers, unplugged coding practice, early finishers, morning work, small groups, sub plans, homeschool, intervention groups, and computational thinking practice.

What’s Included:

• 1 colorful cover page

• 12 student worksheet pages

• 1 answer key page

• Algorithm Lock worksheet

• Missing Step Lock worksheet

• Debug Code Lock worksheet

• Loop Lock Challenge worksheet

• If Then Lock worksheet

• Input Output Lock worksheet

• Pattern Lock Puzzle worksheet

• Binary Lock Code worksheet

• Data Sort Lock worksheet

• Prompt Lock Puzzle worksheet

• Pixel Lock Picture worksheet

• Final Coding Challenge Box review page

Skills Practiced:

• Unplugged coding

• Algorithms

• Sequencing

• Step-by-step directions

• Debugging

• Loops

• Repeated commands

• If/then conditionals

• Input-output rules

• Binary code

• Data sorting

• Pixel coding

• Pattern recognition

• Prompt thinking

• Computational thinking

• Logical reasoning

• Problem solving

• Critical thinking

• Independent work skills

Perfect For:

• STEM centers

• Coding lessons

• Computer science units

• Unplugged coding practice

• Morning work

• Centers

• Small groups

• Early finishers

• Homework

• Sub plans

• Review

• Intervention groups

• Homeschool

• Independent practice

Why Teachers Will Love It:

• Low prep and easy to use

• Print-and-go worksheet format

• No devices required

• Coding puzzle and lock-code theme keeps students engaged

• Strong practice for algorithms, debugging, loops, and conditionals

• Includes binary code, pixel code, input-output, data sorting, and prompt thinking

• Great for STEM centers and early finishers

• Answer key included for quick checking

Suggested Use:

Use these worksheets during STEM lessons, computer science units, coding centers, morning work, small group instruction, or unplugged coding practice. Students can complete one page at a time to build confidence with algorithms, code locks, debugging, loops, binary code, patterns, data sorting, and logical thinking without needing a screen.

Please Note:

This is a digital download. No physical item will be shipped. An answer key is included. Some open-ended prompt, pixel code, or challenge-based responses may vary.