Enrich · Stage 4 · Length

Enrich Solve problems by finding arc lengths and the perimeter of sectors, giving an exact answer in terms of π or an approximate answer

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

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Enrichment for this dot point

• Rich taskEnrichmentEarly finishersEnrich
  NRICH: Arclets
  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.

More enrichment in Length

Rich tasks tagged to other dot points in this focus area.

• Rich taskEnrichmentEarly finishersEnrich
  NRICH: Changing Areas, Changing Perimeters
  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.