pinned ears

School horse, 20yrs old, VERY quiet and forgiving. I had her now for six lessons and every time I asked her to trot (takes some convincing) she pins her ears. She then trots okay and is generally very obedient, save for cutting corners here and there or wanting to turn the opposite direction, I...

Okay so I met my new filly about a month ago. She's a little quarter horse, and not yet weaned off of her mom. She's a super smart and sweet filly. She isn't shy at all, was halter broke at a month old, and is ahead of all the other foals at her ranch in training. Everyone is super impressed...