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calculation trainer

Freeze authority, policy, and provenance

Bind a curated problem, solution graph, marking policy, and review state before making correctness or ECF claims.

100 minSaved locally

1

Read with a clear lens

  • versioned problems and policies
  • source evidence
  • review status
  • fail-closed unsupported claims

Pause and write

What exact evidence would be required before calling one marking outcome correct?

2

After reading

Create a provenance chain from a learner step to the problem, policy version, source, and review status.

Knowledge check

When must a marking or ECF decision fail closed?

Write an answer to unlock the reference

It must return review required whenever the frozen problem and marking policy do not explicitly cover the observed path, or when required source or review provenance is missing.

AI_DRAFT · Policy behavior is an engineering contract pending qualified review.
Study information and required outputs

Item information

Stable ID
sprint.authority
Version
1.0.0
Content status
ready
Kind
reading

Dependencies

Model solution graphs and student steps

Required repository outputs

docs/content/calculation_problems_seed.json

Frozen problem, solution graph, and policy fixture

Done criteria

  • Every claim names problem and policy versions
  • Review state is visible
  • Unsupported policy paths fail closed

Finish the session

Record where your understanding stands