Personalized 1st Grade Rocks Toddler Long Sleeve T-Shirt. Back to school Toddler Long Sleeve Tee - White says 1ST GRADE ROCKS in colorful primary colors. Keepsake and photo op gifts for 1st graders first day of grade school or 1st grade teachers. 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.