You can be engaged in the activity of something, but not really be achieving it, like dieting. It’s a very good example. There he is. He’s dieting. Is he losing any weight? Not really. Teaching is a word like that. You can say, “There’s Deborah, she’s in room 34, she’s teaching.”But if nobody is learning anything, she may be engaged in the task of teaching but not actually fulfilling it. The role of a teacher is to facilitate learning. That’s it. And part of the problem, I think, that the dominant culture of education has come to focus on not teaching and learning, but testing. Now testing is important. Standardized tests have a place. But they should not be the dominant culture of education. They should be diagnostic. They should help.