Getting all geared up for the back-to-school season is no joke for teachers — and decorating their classrooms is just another way to set students up for success. Although there are oodles of Pinterest-worthy ideas out there, nothing really gets your kiddos' wheels turning quite like Harry Potter. And, of course, while we completely respect some teachers' over-the-top efforts to totally deck out their space with tons of time-consuming DIY projects, it doesn't necessarily have to be that hard. Don't believe us? Read through to see some creative classroom decorations your students will love whether they're in Gryffindor or Slytherin.