We learned it when I was in elementary school. Through endless drills, the nuns taught us how to separate fact from opinion, and to read between the lines and spot what are now called "weasel words."
While it's a noble goal, I'd say that the two classes that should be brought back are civics and geography.
Geography so we can start having adults who understand their role in the world, and civics so they know how it works and how to change it.
I think if people knew how things (politics and government) worked, more ordinary people would run for office and the halls of power wouldn't be the exclusive domain of the rich and their lawyers.