This portal provides access to maps, aerial photographs, books, booklets, posters, CDs, digital data, and satellite imagery, many of which are useful for teaching about Lewis and Clark. These resources can be used in an...

The United States Geological Survey (USGS) publishes about 57,000 topographic maps, many of which can be downloaded for free. These maps may be used in a variety of science, math, geography, and history classroom...

This lesson shows students how to use various types of scales to measure distances on a map. Topics include the statement of equivalency, bar scales, the representative fraction, and how to measure distances along a...

Students use skills gained from the Web-based GIS tutorial to explore the Willamette Watershed in Oregon. A correlation will be found between types of trees and the riparian zone along the McKenzie River. Population in...

Students will locate some weed and native species found in Oregon and will understand that while databases are beneficial in studying plant populations, local on-the-ground information is commonly more up-to-date and...