A lot of us are still nostalgic for the good old days when the only things we’d have to worry about were getting to class on time and doing our homework. When you finish school, you might start to realize just how awesome some of your teachers were. They’re the authority figures who always put in extra effort when explaining topics to you. They’re the everyday superheroes who’d give you life advice. They’re the artistic souls who would spend hours on colorful signs and charts just to make learning more fun.

Bored Panda has collected a wide variety of informative, supportive, hilarious, and just downright awesome signs that teachers have put up in their classrooms. Scroll down to see the best of the best, and remember to upvote the pics that you liked the most.

Do we have any teachers, professors, or other educators in the crowd tonight? We’d love to hear what tips and tricks you rely on to help your students learn better. You can leave us a comment or two at the bottom of this article, dear Pandas.

Bored Panda wanted to learn more about the role of being an educator, the importance of visual aids, and the secrets to making eye-catching signs, so we reached out to Lisa McLendon from the University of Kansas. Lisa is the William Allen White Professor of Journalism and Mass Communications and the Coordinator at the Bremner Editing Center at KU.

"Visual aids, audio aids, written aids—they’re all good. Presenting information to students in more than one format can help students grasp it more quickly and easily," she told us. Scroll down for our full interview with Lisa.