I was trying to find a lab-style activity for equations and relationships. We tried estimating it by inclining a ruler and using a graph to approximate the height of the building. This would have worked better with a taller building (some students were able to reach the top of the building using a long measuring tape). We also should have waited for a sunny day, so that it would be easier to point the ruler at the top of the roof, using the shadow. IMG_0357