Ah, Delgado was bullied by one of the puppies (another GSD of all dogs lol) in his class during the playtime for the first few sessions, it's not unusual. He was raised around other dogs both at the breeders and my house and extensively socialized with rock solid nerves but he still didn't just jump in head first into the first puppy play session.
Step between the two puppies if she's showing signs of nervousness and gently block the other dog from approaching.
What I found helped was the trainer split the playgroup into two, one being the boisterous dogs and one being the quieter dogs. Delgado played with the quieter dogs and enjoyed it, they still ran and wrestled but it wasn't as extreme as the other group. So one group would play while the other group did obedience with their puppies, then we switched. By the fourth class we had the entire group playing together, but they still split off naturally into those two groups since they had time to forge "friendships" and learned which dogs were safe and fun.
If the group is too big some dogs can't handle it especially when they're young puppies, it takes them a bit to size each other up and learn.
Go in early and try and talk to the trainer before the next class and see what they say, between both of you there can be a plan made to make sure that all dogs are happy, especially yours. It might mean keeping your puppy with you and gently blocking the others away until she becomes more comfortable with the group or the trainer might have another plan in mind.
Here's the thread with my story about Delgado and his puppy class. Hopefully it will help as it shows even a dog with everything going for it in breeding and temperament can have issues in certain settings
Jasmine - Female Miniature Poodle - born Aug 15, 2010
Loker Delgado Von Stalworth - Male GSD - born Jan 26, 2012
Koda & Zazu - 5 year old male cats
Alex - Male Cocker Spaniel (rescue) - RIP Cuddlebug 2007-2010
Last edited by Shade; 09-24-2013 at 01:41 PM.