Publicado in Upstream
Autores Monica Gonzalez-Marquez, Anouschka Foltz, Jeffrey K. Bye, Ali Fulsher

Take a look at the picture below. What do you see? Think for a moment and write down your observations or say them out loud. Did you see tracks in the snow and the shadow of trees in the background? Maybe you were more specific, noting there are different kinds of tracks going in different directions, and at least two trees casting shadows.