This compilation of videos and webpages illustrate an online prototype that supports “ Measuring the Earth: How Indians Used Geometry, Geography and Astronomy to Create Earthwork Monuments .” The original Facilitator Guide and Learner’s eBook were developed for Nebraska Indian Education Association (NeEIA) through a grant from the Department of Workforce Development. The original Facilitator Guide contained more than 40 lessons. It was updated and revised in 2021.
Sunrise at one month intervals over Grossmugl Mound
Sightline Geometry: using True North to define the Four Sacred Directions
Sandbox video
Geometry in Earthwork Monuments
Turtle Island: comparing a turtle shell to North America on a globe