Curated OER
Astronomy With a Stick
Students find the altitude of the Sun at 10 A.M., at solar noon, and at 2 P.M. by measuring the height of the gnomon and the length of the shadow at each time. They record the measurements in their notebooks for later conversion.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Gnomon Model
A gnomon is the part of a sundial that casts the shadow. This simulated experiment illustrates the gnomon over the course of a day.