For the final lesson of Chapter 12 (and Unit 3!), students applied their understanding of temperature and pressure to the extreme weather example of hurricanes.  We began class with a video describing how hurricanes form:

After the video, we briefly reviewed the lesson objectives in the Lesson 67 PowerPoint.  Students then received a packet containing the Lesson 67 Worksheet, a handout showing the anatomy of a hurricane, a list of extreme weather occurrences from 2005, and a graph of global temperature changes from 1880-2012.  For homework, students were assigned textbook questions 1 and 4.