NO WAY would I EVER let someone come "teach" an A-I course at my place on my cows!!!!! I've been to A-I school, we worked on packer cows. Some of em were definately ruff around the edges, but that's why they use those old worn out cows. You get some guys up there that have never done it before and, I kid you not, they look they are tryin to shoot pool with the A-I gun stuck up there (which looks about like a knittin needle). I can just imagine all the extra holes that are punched into those cows before they learn how to "do it the right way".
Bovine Elite in College Station, Texas is where I went. And yes I was just as inexperienced as the next person, but bein female maybe I hadda lil more compassion for them cows. Just because they were goin from there to the packin house didn't mean you could be ruff with em. School was a week long deal, and the 4 days we actually got to work on cows, we got a new set. (bout 20 head) It's not for the squeamish that's for sure. I'd suggest finding an A-I course that furnishes the cows like this one did. That way no one's cows are gonna be injured in the process.
As for how it's done. Either you watch for natural heat cycles, and have all of your A-I stuff ready and waitin. Or you give them a shot of lutilyse (sp) to make them come into heat. Our local vet also A-I's. If you go that route, he can come out and give the shots, then come back when it's time to A-I. Hope this helps you understand a little better.