I use this lesson with my 10th graders as an interactive, real-world application activity for Economic Interdependence. I divide my students into groups of 3-4, give them a can of soup (beef & vegetable, chicken & vegetable, or any soup with a lot of ingredients works best!) and the handout, and ask them to brainstorm ALL of the things that it would take to make that can of soup; and I make sure to tell them that I am not just asking for a list of the ingredients! The students must then write down this list, determine where they think all of these materials came from, and predict what might happen to the price of that can of soup during several different scenarios.
This lesson could also be used with almost any other food product such as a box of cereal or a box of flavored rice, I just chose a can of soup because it has many different ingredients, it is very portable, and is relatively cheap for me to purchase on a Teacher's budget.