Debug And Improve

What you will learn

• Understand that debugging is a specific repeatable method, and that naming the bug is the first step to fixing it instead of blaming yourself, the universe, or other people.
• Learn the three step debug loop (reproduce, isolate, fix) and understand how to run it on any real problem, tracking each step explicitly.
• Understand why writing down what the bug was and how you fixed it is almost as valuable as fixing the bug itself, and learn to produce short useful debug notes.
• Combine the debug mindset, the three step loop, and the debug note habit into a Debug Log entry for one real bug the student fixed or could fix.

What happens in this lesson

1. Chapter 1: The First Bug

   Understand that debugging is a specific repeatable method, and that naming the bug is the first step to fixing it instead of blaming yourself, the universe, or other people.

   What you make: A saved debugging mindset note describing one recent thing that went wrong and rewriting the student's first reaction from blame or guess into 'what is the specific thing that is wrong?'.

2. Chapter 2: The Three Step Loop

   Learn the three step debug loop (reproduce, isolate, fix) and understand how to run it on any real problem, tracking each step explicitly.

   What you make: A saved three step walkthrough of how the student would apply reproduce, isolate, fix to one real problem they could realistically face.

3. Chapter 3: Document What You Learned

   Understand why writing down what the bug was and how you fixed it is almost as valuable as fixing the bug itself, and learn to produce short useful debug notes.

   What you make: A saved debug note for one real bug, including the symptom, the cause, the fix, and one thing the student learned that could apply to future bugs.

4. Chapter 4: Debug Log

   Combine the debug mindset, the three step loop, and the debug note habit into a Debug Log entry for one real bug the student fixed or could fix.

   What you make: A saved Debug Log entry showing the mindset check, the reproduce steps, the isolation work, the fix with verification, and the short note.

5. Chapter 5: Debugging Hard Problems

   Apply the debug loop to messy real problems with multiple possible causes, incomplete information, and trade-offs between speed, evidence, and confidence.

   What you make: A saved hard-problem debug plan that identifies likely causes, chooses a first test, explains what evidence would confirm or rule out each cause, and states the next move if the first test fails.