Graphs and Networks
These resources have been designed to give a gentle introduction to the world of graph theory and networks. You don't need any prior knowledge, so jump in and have a play, and see what theorems you can discover!
Who's Who? Age 11 to 18 Challenge Level:
Can you solve the clues to find out who's who on the friendship graph?
Connecting the Utilities Age 14 to 18 Challenge Level:
Can you find a way to connect each house to the utilities without any pipes crossing?
Can You Traverse It? Age 14 to 18 Challenge Level:
How can you decide if a graph is traversable?
Euler's Formula Age 16 to 18
Some simple ideas about graph theory with a discussion of a proof
of Euler's formula relating the numbers of vertces, edges and faces
of a graph.
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.