Personalized Teaching Rocks Toddler Long Sleeve T-Shirt. Teaching rocks text with three dancing rocks holding books on Math, Science and Literature is a humorous design for educators and student teachers at back to school, birthdays, holidays and graduation. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.