Newman says that in post-secondary and sometimes in high school, we've traditionally taught this skill by assigning students readings, ideas or concepts to evaluate. This analysis is generally done in four ways: exploring the context, comparing alternatives, weighing evidence and considering implications or new applications. Rinse and repeat.
Something nagged at me while reading this: this whole framework is built like a debate. You're comparing alternatives, weighing evidence against something, picking a winner. It feels very Western-academic way of thinking about thinking. Not every culture treats reasoning like a competition, though. Some traditions are way more dialogic or communal the goal isn't to "win" by evaluating a claim against a rival, it's to build shared understanding or work out how ideas relate to each other and to the people holding them. So when we hand students this framework and call it "critical thinking," we might be quietly telling them there's only one legitimate way to reason well and it happens to be the one that already matches how Western universities grade essays. I still think the framework is genuinely useful. I just don't think it should get to be the only definition available.