This Instructional Activity is a part of the Lesson 19, Unit 5, Grade 6. Work through the given word problem with students. Students should be leading the discussion in order for them to be prepared to complete the exercises. Vincent put logs in the shape of a rectangular prism outside his house. However, it is supposed to snow, and Vincent wants to buy a cover so the logs stay dry. If the pile of logs creates a rectangular prism with the given measurements, what is the minimum amount of material needed to cover the pile of logs?