I just realized how old this request was! Oh well, maybe someone else is interested!
So, I think a lot depends on whether this is an PE activity type course or more than that. If it's a few hours per week and a credit or two, I think you need to slim down your conceptualization and possibly expectations? I do sections on casting, trout fishing, entomology, fly tying (often the most popular), rods, lines and start up equipment. We also have three days each semester on a local, private, trout lake. 1-1.5 credits. I expand that with guest speakers.
Joan Wulff's DVD "Dynamics of Fly Casting", Mel Krieger's DVD "Beginnings", Bugs of the Underworld, and 3 or 4 guest speakers spice things up and get essentials transmitted effectively. Don't forget to get permission. You might also want to check the syllabi on Ken Lokensgard's theliteraryflyfisher.com.
Speakers: Oliver White talks about fly fishing extremes- Arapaima, tiger fish, big bones and GTs along with a solid conservation message. Once we've had three casting sessions, Jim Coveney from Great Outdoor Provision company brings over a dozen rods of different wts and actions to try out. An entomologist / fly angler from UNC or NC State gives an entomology talk. One of a couple of guides talks about the anadromous shad and striper fisheries on the Roanoke River. We tie flies for trophy trout fishing at the lake. I always have materials out for folks to look at before class: "A Treatise of Fishing with an Angle", "Reel Women", Orvis fly pattern book, issues of Fly Fisherman, a John Gierach book or two, a photo album or two. These can stimulate great discussions. I usually bring in Swiebert's two volume "Trout" early on, and go over history using his section. That's a fun semester, at least for me and my students. Oh, and the final exam is "can you eat pizza and tell fish tales?."
Jeffry J. Leary, Ph.D.
Fly Fishing Instructor
Duke University