I thought a good hook for discussing mineral deposits in Alaska might be to compare some maps. The goal would be for the students to realize how wealthy Alaska is in mineral deposits. The first map shows the mineral deposits in Alaska. To put the size of the deposits into perspective, the students could then view the second map which shows Alaska superimposed over the rest of the country. To make this activity more valuable, you could also show the students a map of the mineral deposits in the contiguous United States. I was unable to find a map for this that I liked, but I think I could definitely find one eventually.