This is a PowerPoint presentation that I put together to get our freshman Biological Diversity Lab (4 hours) students up to speed for the bald eagle lab.  It covers how to determine which models and variables are statistically significant as well as quadratic regression.  This is a 30 minute presentation to be used in the 1 hour of lecture and 3 hours of lab (4 hours total) course that a biologist and I (mathematician) co-taught.  We have about 15 students in each of two lab sections.  Feel free to modify in any way to suit your needs.