How much to spend on sons preschool teacher?

My son is in preschool and his teacher has been truly amazing. He is special needs and she has been amazing. Constantly in contact with me, tells me about how great he’s doing and he’s such a sweet wonderful kid, gives him a ton of extra attention and one on one time. My son is definitely a sweet kid but he’s not easy to deal with. He has a significant speech delay so it’s really hard to help him at times but she has put in so much dedication to helping him. I am going to get a gift card and something small but how much gift card should I do?

Vote below to see results!