#### NSDL teaching resources related to “route”

Who were the first Americans, when did they arrive, and from where did they come? With limited evidence, scientists have long proposed a hypothesis that linked the migration route and the timing of the migration of these ancient people to the end of the last ice age.

#### When Did the First Americans Arrive?

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The Ant Colony Optimization project uses the behavior of ants as a model to solve optimization problems, such as how to minimize Internet traffic congestion. Several downloadable research papers are included on the project’s homepage, as well as links to news stories, radio broadcasts, and conference proceedings about ant algorithms.

#### Ant Colony Optimization

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The Traveling Salesman Problem is one of the most intensively studied problems in computational mathematics. These pages are devoted to the history, applications, and current research of this challenge of finding the shortest route visiting each member of a collection of locations and returning to your starting point.

#### The Travelling Salesman Problem

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ArcView Network Analyst is an extension that solves network (streets, roads, rivers, pipelines, etc.) problems. One of the most common network problems is finding the best route among locations on a network. This exercise helps students understand Network Analyst and practice common ArcView skills by finding the best route for a courier.

#### Using Network Analyst to Find the Best Route

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