When students are complete, review the answers and answer any questions that may arise. Each group gets a copy of the handout, a can of pringles, a sheet of construction paper or colored paper, tape, markers or colors, and a ruler. The students are to create a label for their own brand of potato chips. Their labels must fit the can perfectly. When the labels are complete, they are to leave them off and answer the questions on the handout.
Students get a partner and sit back to back.
Set up this situation for the students. You are at home trying to complete your homework. You reach a problem you cannot work. You and your partner are to replay this situation with this problem. Calculate the surface area of a cylinder with a height of 7 in. and a radius of 11 in.