Here are 2 examples of the covers of their books.
Page 1 was a little foldable I found online. It showed all the places that penguins live.
Page 2 is the diagram of a penguin, again I found this online. Page 3 held 3 index cards with penguin facts and drawings.
The other thing I'm using almost weekly now. We all know about the old KWL chart. This is the new and improved version.