Enrich · Stage 5 · Introduction to networks (Path)
Enrich Demonstrate that some graphs that have crossing edges are still planar if they can be redrawn so that no 2 edges cross
Extension and enrichment for students who are ready to go deeper: rich tasks, problem solving and open-ended challenges.
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More enrichment in Introduction to networks (Path)
Rich tasks tagged to other dot points in this focus area.
- Mathigon: Handshakes and datingUse it for: Extension puzzles on counting edges and degree sums.
- Mathigon: Map colouringUse it for: Enrichment: four-colour theorem and planar graph faces.
- NRICH: EulerianUse it for: Low-floor, high-ceiling NRICH task extending this dot point; use for extension or a problem-solving lesson.