Teaching and grading: matched fictional source cases
Exploratory diagnostic: six fictional source families; separate teaching questions and fixed-answer grading. Four grading profiles vary evidence-audit instruction and rubric specificity. Not a learner-gain study or model qualification. No private data.
Prompt
This is a fictional teaching exercise. Use only the given source facts, without browsing. Write a worked teaching example for a learner. Answer the question with essential reasoning, explain a tempting but wrong inference and why it fails, then give one fully specified transfer question with different fictional facts/numbers, its worked answer, and two checkable grading criteria. Preserve uncertainty and distinguish source facts from invented transfer facts. Use at most280 words; do not omit essential reasoning to meet style preferences. SOURCE: At a book club, an email account called Members displayed a request. Ana sent it and Bo originally drafted it. The mail log says it reached Ana. There is no record that anyone accepted responsibility for carrying out the request. QUESTION: Who is established as responsible for carrying out the request?