WEBVTT

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Let's make a tiny program and see what it does.

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Open Code Sandbox from Study Tools.

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We'll use Python and start with something simple enough to
understand at a glance.

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In the editor, we'll print a greeting, then add two numbers.

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Before you run it, make a prediction: what should appear in the
output?

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That small check makes coding a learning activity, instead of
guesswork.

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Choose Run.

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Now compare the output with your prediction.

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If you see an error, read the message and check the line it
names.

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Fix one thing at a time, then run the program again.

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Let's change the numbers and run it once more.

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Watch how the output changes.

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You've just practiced a useful coding habit: make a prediction,
test it, and explain the result.