TEACHER'S GUIDES - Index
Great resource
SeaWorld Teacher Guides
Sea World offers two brilliant PDF teacher's guides. One is for grades K-3, the other for 4-8. These free downloads have not only facts and data but also reproducible maps, flashcards, charts, and images. This is an excellent resource you do not want to miss! It can serve as the foundation of your penguin study without your buying a single thing.
There is a ton of other things available too, I accidently came across this in my quest looking for stuff for my Penguin Unit Study for the Fall for our Co-op.