Well, our tryouts use to be just tumbling &jumps.. but they changed them this year. This year they're like a practice except the coaches/ judges are sitting at a table in front of you. I LOVED THIS!! b/c i get SO nervous during tryouts! They're divided into groups by age (12 and under, 12 and up, & the rest? haha). We first warm-up and stuff and do jumps, jumps to tumbling, standing tumbling, running etc. After doing one section they would ask us all to go to one corner or whatever and throw the highest pass we have. After all the tumbling we just get into stunt groups and do basics.. kind of. They adjust to how you're doing to each skill (if you're good at one skill they'll tell you to go to the next-- full down to double full down etc.) We also had to fill out a contract with all the legal stuff and what not and put our skills down like check mark if we had certain skills.
The summer practices are usually combined practices and if you improve you can move up and vise versa. Once the actual competition season starts there's not much changing though, but i'm pretty sure that's everywhere;)