So my manager comes to me this morning and announces that I've got someone coming in to my class this afternoon. And every Wednesday afternoon for the next month.

She wasn't exactly clear about why they were coming, but mentioned something vague about the person having a group of students to teach next week, and how I had to tell her about the group.

She arrived (15 minutes late), stayed for the whole lesson, at the end of which I'd had an hour of feeling uncomfortable and discombobulated and was none the wiser as to why she was coming into my class.

The class in question is ostensibly IT, but they have 2 IT classes, and the one I do with them tends to be an extension of what they've done the lesson before. Not exactly thrill-a-minute ICT, but most of them only use the basics of a computer, plus at Entry 2 that's what we cover. And now I feel like I've got the sword of Damocles over my head, because I don't like being watched in a lesson, and I have no idea what kind of observation this was. Also, the person who came in said she was 'shadowing' me, but I hadn't been asked whether I would be willing to be shadowed, I just had a month's worth of discomfort sprung on me.

And I have no idea what to do about it.