Tutor-visible context
Student context
Problem context
学生正在计算前回忆密度的定义。
Learning objective
帮助学生回忆密度和质量、体积之间的关系。
Context window
Conversation history
No prior conversation. This case starts with the current student message.
Public boundary
What this page does not expose
This public development artifact intentionally excludes ground truth answers, known-misconception annotations, rubrics, and evaluator-only evidence. A future hidden challenge dataset must use the same fail-closed serialization boundary.