Lesson-specific original diagram for First Peoples and local chemistry evidence protocols. Model: place + community authority + chemistry evidence. It supports this lesson focus: When First Peoples or local knowledge is relevant, use Nation/community-authored sources or direct permission/context; chemistry can analyze compatible evidence without universalizing, extracting, or inventing knowledge. Text-only equivalent: use the model statement, identify variables/species, then connect the representation to the lesson calculation and evidence check.