Meet the T-shirt every teacher needs. This pun-worthy design tells your student that the only way they’re getting straight A’s is with hard work, or a ruler. Whatever works for them! This T-shirt is a great gift to give to any teacher or teaching faculty member who is known for their sense of humor and isn’t afraid to have a little fun in the classroom. It’s the T-shirt they’ll reach for at the start of the semester or when exam season comes around again. This tee will make you top of the class.