Curated OER
Location of the First Point of Aries
This site, created by an amateur who has studied astronomy for thirty years, provides a scholarly explanation of the vernal equinox. Links to definitions of significant terms.
Curated OER
Image of Epsilon Arietis
This site, created by an amateur who has studied astronomy for thirty years, provides a scholarly explanation of the vernal equinox. Links to definitions of significant terms.
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...
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...