This is a class activity that utilizes discussion boards but can easily be adapted to in-class use. Students use measurements and surface area to calculate the amount of paint needed to paint a room. They must take into account windows, doors, etc. They must explain how they do their calculations and discuss their methodology. They post their solutions and then respond to at least 2 of their classmates. This helps students develop writing and communication skills that they will need in a job-related situation.