Your students can write code — but can they explain why it doesn’t work?

This intermediate LEGO SPIKE Prime debugging worksheet pushes students beyond simple mistakes and into intentional problem-solving. Students must match buggy code to a known goal, identify incorrect logic, and make targeted fixes without rewriting the entire program.

Students will:

• Predict robot movement from multi-block code
• Compare buggy code to a correct movement goal
• Debug by adjusting values, order, or logic
• Explain why their fix works
  

This worksheet is ideal for students who already understand basic movement blocks but need practice thinking like real programmers.

What’s Included

• Multi-step movement predictions
• Clear movement goals for each problem
• Bug-fix challenges tied to the same robot behavior
• Deeper reflection and explanation prompts
• Answer key and teacher notes
• Editable worksheet

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