Yale University
Yale New Haven Teachers Institute: Enduring Culture Lesson Plans
This unit on Mesoamerican and Mayan culture contains lesson plans, a list of materials, objectives, bibliographies, and much more. The lessons could also be adapted to various grades.
Khan Academy
Khan Academy: Camelid Sacrum in the Shape of a Canine
This fascinating and unique prehistoric sculpture of a dog-like animal was discovered accidentally in 1870 in Tequixquiac, Mexicocan. Anthropologists are not certain of this object's original meaning for either the artist or the people...