Is the widow nearer looks bigger than the one further?
Question like this leads us to perspective.
Instead of draw lines on a piece of paper, I would say create a space will be better! We looked at one point perspective and look for reason why we look bigger or smaller when standing at different position. Then, they have to create their own city streetscape in 3D
It is fun to use paper, shoe box, and paints all together.
We cut roads, draw trees and buildings, and stick them onto the streetscape scene!
Look how creative they are!