Good thinking there!
Well, I'm not set up for true macro work either, but you can still get some fine close ups like I do with a standard lens. She'll want to get a small aperature like f10 or f16. The reason is because regular lenses can't get close enough to the subject and it will be hard to tell if front-to-back depth of field is focused right and the smaller aperature gives you more leeway for error. That will demand a longer shutter speed though, and will need a tripod unless using a flash. With flash, it won't matter, as it will freeze most motion, but the lighting effect may or may not be desirable. Have to shoot it and see on case by case scenerio. There is usually a "macro" cheater setting on most cameras, and all this does is what I just recommended. You get more options by doing it yourself though. Again, with true macro lenses you can get within less than in inch of subject sometimes. With mine, I have to get about eitht feet away. Still doable but I fired seven shots to get the one of the mantis right, and it is still not perfect. Does that help at all? If you have more questions, feel free, and I'll answer back when I can.
Off-topic, but I just loaded the first five of the shoot with Heather. More to follow when I get back. We live in the sticks with horrid cell reception and no internet access that I know of, but I will work on them when I get back. These are a little different, but Whatcha think?