Typically, a 4-H dog show will have both obedience and showmanship. Showmanship is basically like junior handler from AKC shows. Where you are judged on how well you show the dog rather than judging the dog against the breed standard. But everything from your AKC showing applies: proper gate of dog, make sure the dog is between you and the judge, have your dog stand at all time, proper tabling (if she shows a small dog) and care/grooming. Because its dog care, they may ask the handler questions like "name an external parasite, how much do you feed your dog, what breed/group is your dog, what shots do you give your dog, etc." The judge is basically looking to find out that the 4-H member is caring for the dog, not the parent.
For obedience, she would be in Pre-Novice First Year. Everything is done on a 6-foot leash. Most important thing to remember... once you step in the show ring DO NOT CORRECT YOUR DOG. If the dog doesn't sit, so be it. You can say 'Sit' again if she likes, but don't pull on the leash to correct. Also, don't praise/touch the dog until the current exercise is over. The judge will says 'Exercise Finish" and that's where you can say "good boy", smile or pet your dog.
Pre-Novice First Year consists of Heel On Leash, Figure 8 On Leash, Stand for Exam, Recall On Leash, Long Sit (1 minute) and Long Down (3 minutes).
Heel On Leash - Tonight when you practice, call out commands for her like Halt (stop), Fast (run), Slow, Left Turn, Right Turn, About Turn (U turn to your inside, not to the dog).
Figure 8 - You will start in the middle, when you are told "Foward" go to the person closest to your dog. You do a figure 8 around two people and sit when told.
Stand - When told, stand your dog up. You can lift from underneath. Make sure your dog's feet are all squared up (so he doesn't shuffle his feet), tell stay and walk to the end of the leash. The judge will then run her hand over the dogs back. If the dog moves, don't reset him. Just leave it.
Recall - Sit dog, stay and walk to end of leash. When told, call the dog and have him sit in front of you. When the judge says 'Finish', give the dog the command to return to the heel position. If the dog doesn't listen, go ahead and take a step back. Better to get a points off for a double command than to not do the skill at all.
Long Sit - Sit dog, stay and walk to the end of leash. In Pre-Novice, you should get credit for any time they sit. So even if its 15 seconds, you get some points. If the dog gets up, have your daughter slowly pull the dog to her and have the dog sit next to her as not to disturb the other dogs.
Long Down - As a group everyone will say "Down". If your dog doesn't hear you, go ahead and give the command again. The judge won't be able to hear you over everyone else. If the dog still won't go down, gently place her down and give the stay command. Same applies as the long sit.
Hope that helps and good luck!