Practice Calibration

Use this after attempting independent practice. These are calibration notes for the new cases, not answers to every original open-ended project. The module assessment retains its own scoring and evidence requirements.

Prerequisite calibration

A consistently wrong implementation can agree with itself. Repair independent-oracle and property/certificate reasoning.

A ready answer includes the example or trace requested in the entry check. A memorized term is not sufficient. Repair the named earlier skill, then change the example and explain it without this page.

Case A

Use an independent small model, hand-derived case, conservation/property or externally checked certificate. Show a targeted mutant rejected for the intended behavior, then recheck the correct implementation.

Full practice credit requires the result, assumptions and an explanation of the tempting error. A correctly guessed conclusion without those elements is only partial evidence.

Case B

Exact dependency/build/runtime versions and behavior at the changed boundary; unchanged input does not imply unchanged environment. Reproduce from a clean setup.

The key judgment is which guarantee survives the changed condition. Do not transfer a result from the first case without checking that condition.

Experiment calibration

Build a real end-to-end vertical slice, preserve failing-before/passing-after regression and mutate the repaired fault. Record contract boundaries, test limits and maintainability review rather than only coverage percentage.

A usable record links the hypothesis to the actual input, observation and interpretation. The negative control must fail for the intended reason, and the repaired setup must pass the relevant check again. Report unexpected outcomes rather than altering the hypothesis afterward. Explicitly state the model, environment and untested boundary; passing a small fixture never proves every deployment behavior.

Recheck

Explain a fresh variant without the key. Retain the original error, repair, help received and delayed result in the existing evidence packet. Self-calibration is not an independent reviewer sign-off or a learner-pilot result. For retrieval-question explanations, use quiz calibration only after attempting the quiz.