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Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
Vertex edge graphs
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Vertex edge graphs

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Transcript

  • 1. Introduction to Vertex-Edge GraphsLearn how to color vertex-edge graphs using the least amount of colors
  • 2. What is an edge? An edge is the side of the shape.How many edges does a rectangle have?3 4 2
  • 3. Sorry! Try again!
  • 4. You are right!A rectangle has 4 edges!
  • 5. What is a vertex?A vertex is the point where two sides of a shape meet.How many vertices does the triangle have? 4 3
  • 6. Sorry! Try again!
  • 7. You are right!A triangle has 3 vertices!
  • 8. What is a piece?Each different colored section is a piece of this graph.
  • 9. In a vertex-edge graph, two piecesthat have a shared or common edge cannot be the same color.
  • 10. We want to use the fewest colors we can to color the graph.What does fewest mean?Most / Least /More Less
  • 11. Sorry! Try again!
  • 12. You are right!Fewest means least or less.
  • 13. Which vertex-edge graph is coloredcorrectly using the fewest colors? Remember— Pieces that have a shared or common edge cannot be the same color. 2 3
  • 14. Sorry! Try again!
  • 15. You are right!Remember: When you color vertex-edge graphs, you must use the fewest amount of colors so that no pieces that have a common or shared edge are the same color.

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