Recently I gave a presentation on CPs to a group of volunteers at a local arboretum. It's really important to give a solid foundation, such as where the plants live and why they are carnivorous before delving into the plants themselves. This allows the students to make connections and explanations themselves. My presentation started with an overview of what I said before, where you could find carnivorous plants and how this led to their adaptations. Then, I explained the four major CP traps types, (Pitfall, Flypaper, Bear trap, Bladder). I gave a very general explanation/diagram of the trap, then did somewhat detailed explanations on the plant genuses that use them. At the end I gave an explanation of how I got interested and my grow setups.
Here's the rough order of my slides:
What is a carnivorous plant?
Where are they found?
List of types of traps.
Pitfall traps
-Heliamphora
-Sarracenia
-Nepenthes
Flypaper traps
-Drosera
-Drosophyllum
-Pinguicula
Snap traps
-Dionaea
-Aldrovanda
Bladder Traps
-Utricularia
How I got started
Now when dealing with high school students, it's very important that every slide has a picture or video. I'd say the maximum is 3-4 bullet points with 6 words per. You should really use pictures and elaborate orally. It's also awesome if you throw in a few timelapse videos or clips from documentaries, there are tons on Youtube.