Personalized 1st Grade Teacher Cupcakes Youth Long Sleeve T-Shirt. 1st Grade Will Teach For Cupcakes teacher gift design comes on Youth Long Sleeve T-Shirt - Heather for first grade school teacher appreciation end of year or back to school presents. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)