Personalized Geography Teacher's Rock Youth Long Sleeve T-Shirt. Geography teacher's rock using rock as a noun instead of a verb with a happy rock holding the earth is a humorous gift design for your favorite teacher at back to school, birthdays and holidays. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)