This is not just for pre-schoolers. My 16 year old is pinning insects for her collection right now, and I am online helping her try to figure out what they are. I have shared many passions with my kids over the years (Lord of the Rings, Harry Potter, politics, birds, insects, tennis, cross country skiing). D is going places now that I can't easily follow (she was talking about protein folding today...). But it has been a blast.