We ❤️ and appreciate all the teachers out there — and we know some great ones! Wishing a happy #WorldTeachersDay to Mr. Ratburn (@arthurpbs), Teacher Harriet (@danieltigertv), Mr. Sparks (@heroelementary), Ms. Mole (@elinorwonders) and all of PBS KIDS' teachers! Find episodes featuring your faves streaming free on PBS KIDS.