{
  "unit": 9,
  "standards": [
    "Parametric representation",
    "Parametric derivatives",
    "Second derivatives",
    "Parametric area",
    "Parametric arc length",
    "Vector-valued motion",
    "Velocity and acceleration",
    "Trajectory modelling"
  ],
  "evidence": [
    "lesson derivations",
    "pathway problem set",
    "investigation",
    "mastery check",
    "portfolio correction"
  ]
}