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We have annotated several hundred teaching resources cataloged in the National Science Digital Library with spatial concept terms listed below. We have also created a new TeachSpatial collection annotated in the same way. The concept terms were drawn from the U.S.National Science Education Standards (NSES 1996) for topic areas B - Physical Science, C - Life Science, D - Earth and Space Science, as well as from the 1994 U.S. Geography Teaching Standards for grades 9-12. Those standards can be browsed here.

spatial concept terms

NSDL teaching resources related to "network"

The River Network (RN) is a nonprofit intended to help people monitor, protect and restore rivers and watersheds. The RN site has community information, a newsletter and links to events. From the site: "River Network is a national nonprofit organization working for clean and healthy waters. While rivers are our focal point, we are interested in the quality of all fresh waters and the health of all people and ecosystems dependent upon them. We are unique among national organizations, because our very reason for being is to support grassroots groups working for watershed protection.

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The River Network

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This article by Carl Zimmer shows how network theory can be applied to ecological systems, with a description of how these systems are investigated. The article also provides an introduction to networks with "Six Degrees of Kevin Bacon".

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Network Theory: A Key to Unraveling How Nature Works

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Dr. John Delaney leads a team that is building a cabled network of deep-ocean sensors that will study, over time and space, the way the ocean's complex processes interact. The lecture explores the need to understand these interactions and research that is currently on-going and planned for measuring, sampling and sensing the deep ocean processes and organisms that are new to science.

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Wiring An Interactive Ocean - A TED Talk by John Delaney

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Robert W. Fogel (born 1926) is best known as the leading proponent of revisionistic economic analysis of some of the most cherished assumptions of American history. Dubbing his technique "cliometrics," Fogel introduced cost/benefit analysis, depreciation, and value added considerations into the area of historical study. In 1964, in his book Railroads and American Economic Growth, Fogel attacked the commonly-held notion that the development of the railroad network was a turning point in the economic development of the United States.

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The Argument for Wagons and Canals

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Kevin Lynch was a significant contributor to city planning and city design in the twentieth century. One of Lynch's innovations was the concept of place legibility, which is essentially the ease with which people understand the layout of a place. By introducing this idea, Lynch was able to isolate distinct features of a city, and see what specifically is making it so vibrant, and attractive to people. To understand the layout of a city, people first and foremost create a mental map.

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Kevin Lynch: City Elements Create Images in Our Mind, 1960

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Students learn to solve minimum cost network flow problems.

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Network Simplex Method: Pivot Tool

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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.

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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.

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Using Network Analyst to Find the Best Route

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Enter your own electrical network and the applet will draw the impedance graph!

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Impedance calculator

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