Hi, Jana!
A trip to
Walt Disney World can be overwhelming, but for little ones, be especially aware of how things are going if you want to avoid a melt down. My best suggestion is to try not to do too much. Schedule down time at your
resort hotel. Whether it's a dip in the pool or a nice nap, it might be just what you need to keep everyone happy.
Walt Disney World offers something perfect for your situation. The
Rider Switch option will help you get all the kids onto an attraction, while someone waits with any little ones who won't or can't ride. You'll want to ask at the attraction if the service is offered, and then while one party and some of the children ride, the other party waits. When that person is done, you'll use the Rider Switch to have the second party go with the other kids. You can take up to two additional guests with each party, so if the first person takes two on their trip, you can take two on yours, and everyone has had a turn. It works great in situations like these.
I also want to mention the
Baby Care Centers. Not just for babies, these cool and comfortable facilities, located in each theme park, are the perfect place to do a quick diaper change, have a snack, feed a little one, or just give everyone a short time out. They have high chairs and regular chairs, televisions playing kid friendly shows, and a good variety of baby items available for purchase (diapers, formula, etc.). This may be a key to avoiding a melt down as well.
Have a wonderful trip, Jana!
Anna