Personalized Future Pre-K Teacher Youth Long Sleeve T-Shirt. Especially for the Future Pre-K teacher this colorful design has handprints and slogan that says When I Grow Up I'm Gonna Be A Pre-K Teacher on a Youth Long Sleeve T-Shirt - White gift. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)