calculation trainernowmental model
Model solution graphs and student steps
Represent the canonical Kp calculation path, structured student work, example tracing, and model tracing as separate inspectable objects.
- Stable ID
sprint.domain-model- Item version
- 1.1.0
- Time
- 120 min
- Status
- ready
Reading lens
Focus
- solution graph nodes and dependencies
- structured student steps
- example tracing versus model tracing
- separate mathematical and chemistry-model correctness
Ignore for now
- free-form handwriting OCR
- arbitrary equation parsing
- additional chemistry modules
Canonical sources
Open the material
Before reading
Which facts belong to the problem, the canonical solution, the student's attempt, and the evaluator trace?
After reading
Trace one Kp example through the ten canonical nodes and identify the data produced at each node.
Knowledge check
Why are a list of final answers and a solution graph not equivalent?
Write an answer to unlock the reference
A solution graph records node meaning, dependencies, expected transformations, and provenance. That structure lets the evaluator align student steps, locate the first invalid dependency, and distinguish a carried-forward consequence from a new error.
AI_DRAFT · The domain model is frozen for engineering work but awaits chemistry and curriculum review.Working notes