At the Toys R Us store, we saw an amazing LEGO creation. He was a life-sized LEGO fireman with a walkie-talkie, an oxygen tank and even an oxygen tank gauge. He must have taken a long time to build.
Let your students watch the short movie of the Fireman, consider what they might like to understand about him and what else they might need to know. Then, using our block measurements, encourage them to underestimate and over estimate his construction time and LEGO block quantity, and then average their class estimates. How close will they be to the actual time for construction and quantity of LEGO blocks?