Debate class is very good about teaching you how to debate in debate class. It has precious little to do with any other kind of argument.
Not that there's anything wrong with debate class. It's very good about teaching you to do research, organize, marshall arguments, speak clearly, and lots of other things. But it's notable that debate class isn't about arriving at truth -- you're expected to be able to argue either side of the debate with equal facility, and you're judged on your ability to present rather than the merit of the position you're defending.
Not that there's anything wrong with debate class. It's very good about teaching you to do research, organize, marshall arguments, speak clearly, and lots of other things. But it's notable that debate class isn't about arriving at truth -- you're expected to be able to argue either side of the debate with equal facility, and you're judged on your ability to present rather than the merit of the position you're defending.