http://einstein.stanford.edu/content/educa...order_form.html
The three panels of this poster tryptych describe Einstein's theory of spacetime. On the front of each panel are a collection of images to interest the viewer in various aspects of spacetime. On the back are reproducible descriptions and classroom activities that explain the key ideas of each panel.
The poster tryptych comes in three sheets. Each sheet is 12"x36". These posters are a free product to educators and students, provided by NASA and Gravity Probe B.