Hi Jennifer!
Based on your plans you've mentioned, you'll want to purchase a 6-day Magic Your Way Base Ticket for each member in your family. Adult tickets for ages 10+ will be required for the 2 adults in your party while your little ones will need tickets for ages 3-9.
Theme Park Tickets may be purchased in advance online, at the park gates, at Guest Services at Downtown Disney or in advance as part of a
Magic Your Way Vacation Package.
Each 6-day Base Ticket will allow you 6 full days of park visits, without hopping privileges, meaning you'll visit only 1 Park Per Day. You will be able to leave and re-enter the same park in the same day should you need to return to your resort for nap times.
Once you begin using your ticket, the remaining days on the ticket are valid for 14 days, meaning that you do not need to make your park visits on consecutive days.
No ticket or admission is required to visit the wonderful shops and
restaurants while you tour around Downtown Disney. It's one of my
family's favourite places to visit.
Thanks for visiting the Moms Panel with your question. If you should require further assistance, I do hope you'll return to visit me again soon!
Wishing you a Magical time as you plan your family's Magical Walt Disney World vacation Jennifer!
Kirsten