Creating Objectives and Plans from "Real Books"
Many books at the library are wonderful. There's one that I have in mind that is my favorite resource for astronomy, The Nature Company Guides: Skywatching by David H. Levy [288 pages].
I bought the book many years ago ... actually, I have bought this book twice. It is out of print now, but you should be able to find it at the library or at amazon. If you wish to cover parts of astronomy, I recommend this book, The Nature Company Guides: Skywatching by David H. Levy.
For the sake of this example let us say that you want to design a group of lessons that teach how to read a star map, how to find certain stars and identify constellations. See the objectives listed below... These classes could take place in September through October in preparation of the lab. The lab for the astronomy unit should involve going outside finding the stars and constellations. In the northern hemisphere the best time to observe the night sky is during winter.