Here is the industry’s open secret: professional programmers spend most of their working hours not typing brilliant new code but reading, testing, and repairing code that does not do what anyone intended. Debugging is not the embarrassing interruption to the job — it is the job. Which means the error message on your screen is not the computer scolding you; it is the computer holding up its end of a conversation, telling you as precisely as it knows how where things went sideways. The skill this course cares about is partly technical and partly emotional: staying curious thirty seconds past the moment frustration wants you to slam the laptop shut.
Questions worth arguing about:
- Why does an error message feel like an insult when it is literally the most helpful thing the computer can say? What would change if you read it the way you would read a note from a teammate who watched the crash happen?
- If professionals spend most of their day debugging, what does “being good at programming” actually mean? Rank these: typing speed, memorised syntax, patience, curiosity, method.
- Describe the exact moment frustration peaks — the re-run-it-again moment, the delete-everything urge. What do you do in that moment now? What could you do instead, on purpose?
- Which is worth more: a program that worked on the first try, or a bug you hunted down yourself? What did each one actually teach — and which will you remember at the end of the course?
- In Spot the Bug, hunting a planted bug is genuinely fun. The identical hunt in your own program feels awful. The bug is the same — so what changed? Is the difference in the code, or in what you think the bug says about you?
This discussion is the why behind two tutorials: the method lives in Debugging Step by Step, and the survival kit lives in Getting Unstuck. And it is why Our Classroom Norms says bugs are information: a room that treats errors as data debugs faster — and enjoys it more — than a room that treats them as verdicts.
Curriculum connection
C2.6
interpret program errors and implement strategies to resolve them
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