Instructor Guide and Review Status

Status

This is an author-reviewed candidate, with executable calibration checks. Independent subject review, accessibility review and learner pilots remain pending. Neither content volume nor a passing script establishes an elite percentile outcome. Consult authoring/problem-solving-semester-one-review-2026-09-24.md in the source repository for the correction and verification record.

Review protocol

Attempt P tasks before opening feedback; freeze the first A attempt before its key. Score each competency separately and request a changed-case explanation. Inspect the contract and proof even when code passes. Accept alternative valid witnesses and strategies. Record whether evidence was independent, assisted, self-assessed or reviewed by another person.

Run the download in a fresh directory. The reference should pass; the untouched starter should fail with NotImplementedError. Introduce a wrong tie rule, unreachable sentinel, greedy answer and incomplete shrink pass to test whether the checker rejects them. Supplied mutations are useful checks, not proof that the entire checker is correct.

Pilot to do next

Observe learners with different prerequisite backgrounds. Record time by phase, hint use, ambiguous prompts, false passes and delayed retention. Ask an independent reviewer to solve the exam and challenge the answer key. Revise workload and rubrics from that evidence; do not label pending reviews completed.