OER Module

A short open educational module based on Chapter 4 “Earth, Moon, and Sky” of Astronomy 2e (Andrew Fraknoi, David Morrison, Sidney C. Wolff; OpenStax, 2022). Eight lessons cover the Earth’s coordinates, seasons, timekeeping, calendars, lunar phases, tides and eclipses. Content is licensed under CC BY-NC-SA 4.0 (https://creativecommons.org/licenses/by-nc-sa/4.0/). This course is used as a test bed for a study of OER delivery under unstable connectivity.