Module 01/How Python Works
Foundationconcept10 minuteslesson plan + live practice
Arithmetic, Precedence, and Precision
Use numeric operators while accounting for precedence and floating-point limits.
what you'll practice
Predict a receipt calculation, locate its rounding error, and make the policy explicit.
how this lesson works
01
Predict
Commit to what the program will do before running it.
02
Diagnose
Use the prediction to distinguish competing misconceptions.
03
Repair & explain
Fix the model, then teach the reason back in your own words.
04
Transfer
Apply the concept to a different-looking problem before mastery.
recommended debugging practice
Average of three
This runnable exercise matches the lesson's concepts closely. It includes visible tests, hidden edge cases, progressive hints, and a related transfer exercise.
Open debugging exercise →Go deeper