Enrich · Stage 5 · Circle geometry (Path)

Enrich Demonstrate that at any point on a circle there is a unique tangent to the circle, and that this tangent is perpendicular to the radius at the point of contact

Extension and enrichment for students who are ready to go deeper: rich tasks, problem solving and open-ended challenges.

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  NRICH: Circumference Angles
  NRICH (University of Cambridge) · Web page · Free · Link checked 2026-10-15 · Low floor high ceiling, Teacher notes
  Use it for: Low-floor, high-ceiling NRICH task extending this dot point; use for extension or a problem-solving lesson.
• Rich taskEnrichmentEarly finishersEnrich
  NRICH: Cyclic Quadrilaterals
  NRICH (University of Cambridge) · Web page · Free · Link checked 2026-10-15 · Low floor high ceiling, Teacher notes
  Use it for: Low-floor, high-ceiling NRICH task extending this dot point; use for extension or a problem-solving lesson.