This is the MEA that we used as in introduction to "What are Model-Eliciting Activities (MEAs)". This is a good activity to complete in one class hour to get the class started in understanding problem scoping and modeling. Before completing this MEA, one should watch the MEA Video 1 that discusses modeling and MEAs. It may also be beneficial to watch MEA Video 2 before completing this; this video discusses problem scoping.
This includes three attachments: 1. the soccer ball MEA, 2. the shapes for the soccer ball MEA, and 3. a presentation for the soccer ball MEA and solutions.