NASA
Nasa Star Child: A Song for All Seasons
After listening to excerpts from four of the violin concertos from "The Four Seasons" by Italian composer and violinist, Antonio Vivaldi, decide which excerpt was meant to go with which season, and also decide where the earth would be in...
University of Colorado
University of Colorado: Confluence Creations: Chaco Canyon Tour
Take a tour of the Chaco Canyon archaeological site. The map takes you to the many dwellings and important astronomical sites. Virtual tours are available if you have Quick Time.
Other
Montana State University: Spring and Fall Equinox
This Montana State University site provides a simple chart on the spring and fall equinox and a description of the process.
Math Is Fun
Math Is Fun: The Seasons
Learn about the four seasons, when they occur in the northern and southern hemispheres, and why the seasons change as the Earth rotates around the Sun.
Utah Education Network
Uen: Tracking Sunrise and Sunset
Students will collect, record, and graph the sunrise and sunset times to see how they change throughout the year.
Library of Congress
Loc: America's Story: Christmas Day, December 25
Christmas traditions are unique to each family. But we share a common origin of this special holiday. Learn about the fundamentals of this celebration at this Library of Congress site.
Texas Instruments
Texas Instruments: Sands of Time
In this activity, students can use a graphing calculator to find a regression equation and then interpolate the data from the equation using integration. They will explore the length of day during the winter and summer solstice at...
NumberNut
Number Nut: Calendar Origins
History and mathematics merge in this lesson that explores the origin of the calendar. Learn how it all got started in this detailed lesson that includes a simple months of the year game and a more challenging time conversion game. Both...