Great post @teachblogger. I admit my mistakes on an almost daily basis. In fact, I really believe that authenticity in teaching is what enables you to develop those relationships that make a difference in the life of a student.
I often make a mistake when teaching Maths, and my students take great pride in showing the teacher where he went wrong. I could get upset and annoyed, or just take it for what it is... an error and move on letting the student know that they have picked up on my error really well.
It costs me nothing, but rewards them beyond understanding.
Thanks for sharing this.