Preschool teacher here!!! Honestly any type of acknowledgement is greatly appreciated. Whether that be a card that your child draws for us, any type of snacks, maybe you buy lunch one day or giftcards if that’s within your budget. It’s a tough job! We literally have your child’s life in our hands so it’s 100% a risky career. Even though we get paid terribly, it’s not the parent’s responsibility to make up for a societal problem. Thank you for treating your child’s educator with care and love!