If you can teach someone how to tie a tie without showing them, you might be cut out to be a teacher.

One thing I learned as a lab instructor in college was that being a teacher meant more than just knowing your stuff. A good teacher not only knows the material, but teaches it in such a way that it makes sense (“clicks”) for the student.

In one of my classes, our professor challenged us to describe how to tie a tie without actually showing him. It’s hard. You’ve probably experienced it when talking to someone over the phone. Not the easiest thing to do.

So when it comes to teaching, you have to walk the walk and talk the talk.