Oh my! All the time when my daughter was in school the fieldtrip of choice was to go to Carowinds. Band went to Carowinds. Cheerleaders went to Carowinds. Footballers went to Carowinds....so be prepared to be in the park with large numbers of Middle and High Schoolers when you go to Carowinds.
It's not a bad theme-park. It's closer to us than Six Flags in Altanta is, and much closer than Disney. Expect to pay about $20 a person to get in, but keep an eye out for soda cans that have discounts on them. They're everywhere and usually can knock $5 or so off your admission price.
The rides are standard fare---some roller coasters, the ship that swings, the zoom-zoom things, the flip-u-upside down....Honestly...once you've been to one amusement park, you've been to them all.