The following info may or may not be of help to you.
For related anecdotal information, check out
http://ultrunr.com. While the site caters to an "extreme sport, the site is a wealth of info for hydration and caloric intake in wilderness conditions (many/most ultramarathons take place in the woods).
Stress the importance of checking urine color to gauge hydration. Dark bad, clear good.
Always sip fluids, never chug (chugging floods the body with fluids more quickly than it can be absorbed, which leads to waste)
Constantly sip fluids, the symptoms of dehydration become apparent after its too late.
You want to include the connection between fluid loss and activity, via sweating. If you're dehydrated or calorically-deprived, you don't want to be dancing to Kenny Loggins out in the woods (not that you want to if you're hydrated and calorically-okay either)
I learn best via short catch phrases ala "left loosey, righty tighty". If you don't mind, post your presentation once it's complete, it'd be a great addition to the existing knowledge base here.