Your priority here will be to keep your under fours from giving the puppy too much attention. A cage or open-topped pen will provide it with a safe refuge when it's had enough. A 10 week-old puppy will still need as much as 18-20 hours sleep per day, so do make sure there is somewhere quiet and contained where they can achieve this undisturbed. You will still have an opportunity to introduce the tinies to the pup, but you will obviously be supervising this very closely, with the emphasis on "gentle". Young pups which are teething are notorious nibblers, so watch out for any nips, and try to keep the children away from those needle-sharp little teeth. Give the pup something else to nibble on while you make the introductions. Enjoy! You're going to be busy. P.S. Just a slight worry that your pup will usually have its first vaccinations at 8 and 10 weeks, and too much human contact with outsiders should then be avoided until around 12 weeks, as should their exposure to public spaces. You will need to consider and to manage this.