Goal: a workbook — the questions on their own, then a worked example (Sweller & Cooper, 1985) for each one, every move written out. The reader is a beginner: a step they cannot follow is a step missing.

Ground rule: code computes

Every final answer is checked by a SymPy script before it reaches the sheet. Every curve is plotted by pgfplots from the question's own equation, and every marked point is a checked answer. A number, coordinate, or curve shape written from memory is a bug.

Paths

Set — the user hands over the questions. Run steps 1–6.
Scope — the user names a test. Choose the questions with references/scope.md, then run steps 1–6 on the list the user confirms.
Patch — the user asks why a step in an existing workbook works. Run Patch.

Steps

Gather. Read every question with all its parts. Read the official solution wherever the course has one (tutorial solutions, sheet solutions).

Done when: every question has a source tag (Tutorial 6 Q3(b)), and every official solution that exists has been read.
Solve and check. Write one SymPy script in the scratchpad that computes every final answer: derivatives, roots, points, extrema, rates. Compare each against the official solution.