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Summary
How can you cross each bridge in this city exactly once?
- First, students will cross five bridges exactly once.
- Next, they'll try to cross seven bridges one time each. ⚠️ Note: This is impossible.
- They come up with three more layouts using seven bridges. At least one should work.
- Students count how many bridges come out of the cities. They're looking for patterns to determine whether a map will work.
- Finally, they try four other maps and learn about Euler and the [Seven Bridges of Königsberg](https://en.wikipedia.org/wiki/Seven_Bridges_of_Königsberg)!
