Non-formal education: scouting, schooling and teacher training

摘要

At a recent camp, primary-school-age Scouts were cooking just one piece of bacon on the part of the pan that was directly over the stove flame. Since that procedure would be too slow to cook breakfast for 16 campers, this led to a discussion of the conduction of heat throughout a metal pan, as well as conduction and radiation of heat through thin pieces of bacon. The happy ending was that multiple pieces of bacon were cooked simultaneously, in several layers, using the entire pan, and all got a hot breakfast quickly.