Error Correction (Re-doing the expected behavior after making a mistake)

"Error Correction" is an "in the moment" teaching opportunity.
Basically take the child back to where they made the error (physically) and "re-do" the behavior the correct way.

For example: You are holding child's hand walking in the store. The child suddenly runs off. You chase him down. Instead of just telling him "Don't do that again!" Take him back to where he started to run off and hold his hand and make him walk that same space.

Another example I can give from experience. I used to see a child for therapy in a daycare. When I would show up he would rolls his eyes and groan. I was teaching him social skills and that is not the proper way to greet anymore, especially an adult. So I said "Let's try that again" and I told him what the expected behavior was: "You should say "Hi Miss Patience!" when I arrive. So I went back out the door and came back, expecting him to use the right behavior. We practiced that awhile. Another client I had would stick out his tongue when I arrived. I tried the same thing. I would go back outside and re-knock on his door and have him greet me properly. After a few weeks of that (I only visited 1-2x/week) he now does it properly without having to "re-do" the greeting.

By redoing the behavior in the moment it helps the child learn "muscle memory" to remember what to do. Kids tend to learn better (and so do some adults!) from kinetic learning (using your body) more than just verbal learning. So acting out a behavior or role-playing a social scenario can teach the skill better than just lecturing or telling a child what to do next time without practicing it.