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On a recent Tuesday morning, dozens of New York City educators gathered in lower Manhattan to discuss an existential issue facing many schools: “Navigating Critical Thinking and Cognitive Offloading in the Age of AI,” as the session’s title put it.
As the training began, nearly everyone raised their hand when asked if they agreed that “critical thinking is an essential skill that we need to teach our students.” Over the course of the day, the teachers considered how to prompt an AI chatbot to get better responses and assess its accuracy. They discussed the risks that students would outsource their thinking to the technology. And they learned about classroom practices to bolster critical thinking, including peer tutoring, socratic discussions, and live journaling.
The professional development was put on by the National Academy for AI Instruction, a multimillion-dollar initiative launched by the American Federation of Teachers and backed by AI companies Anthropic, Microsoft, and OpenAI.
I sat in on this training, and many teachers I spoke with said they appreciated its message and strategies. But one important idea was largely missing: that critical thinking is directly connected to the content in math, history, and science classes. This is an essential reality often absent from discussions about how schools should respond to the spread of generative AI.
Indeed, the common refrain that teachers should focus on abstract critical thinking skills, disconnected from content, risks de-emphasizing the very thing — fluency with a broad set of facts — that supports critical thinking.
“Domain knowledge is a crucial driver of thinking skill,” wrote University of Virginia cognitive psychologist Daniel Willingham in 2020 for the American Educator, a publication of the American Federation of Teachers. “Critical thinking for open-ended problems is enabled by extensive stores of knowledge.”
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As technology has made knowledge more accessible — through books, Google, and now generative AI — some observers have said that schools should place less of an emphasis on basic facts that are easy to look up. “Education in the 21st century must go beyond imparting knowledge,” says the World Economic Forum. Instead, schools must impart “future-ready skills” like critical thinking and creativity.
This isn’t a new idea. Over a decade ago, a panel of academics at the National Research Council convened to consider how schools could inculcate “deeper learning” and “21st century skills,” the buzzwords of that moment. Tellingly, though, the experts reframed this assignment. “The committee views 21st century skills as dimensions of expertise that are specific to — and intertwined with — knowledge within a particular domain,” their 2012 report concluded.
To be sure, there are some skills — communication, personal organization, teamwork — that are useful in many settings and subjects. And decontextualized facts — say, memorizing the presidents without a sense of their place in history — aren’t sufficient for critical thinking.
Yet to solve math problems, students must know their times tables. To infer the causes of historical events, they need familiarity with dates and historical figures. To read and analyze complex texts, they need a wide vocabulary. To think critically, say cognitive scientists, people need to be able to seamlessly access and synthesize a large number of basic facts.
Students can look up some missing information, but when people turn to external sources too frequently, the brain struggles to keep track of all the new facts at once. Imagine reading a book and pausing every few sentences to search for an unfamiliar word or idea.
There’s not yet good reason to assume any of this will change with AI. The technology can help find new information, but knowledge is still necessary to prompt AI appropriately, to assess the accuracy of its output, and to apply it to specific tasks.
When I spoke with American Federation of Teachers President Randi Weingarten, she said that knowledge certainly matters but that “what [AI] compels is that kids really have to learn how to think and how to solve problems.” She offered a similar formulation in a major speech earlier this week.
For example, elementary school students should engage in civics by researching a topic and then figuring out how to push local politicians to make change, Weingarten told me. “Maybe there are other issues or other facts within social studies curriculum that are going to have to be dropped,” she said.
Maria Elena Guzman, one of the AFT Academy instructors, said that the role of knowledge was not foregrounded in the training because teachers already know they have to teach their content-focused standards. “It’s a given. This is part of the work that they do every single day,” she said.
But if teachers are not taught explicitly about the connection between knowledge and critical thinking, some may leave with the impression that factual content matters less than it used to, especially since this remains an evergreen take of popular education commentators.
Jessie Roeder, a high school robotics and computer science teacher in New York City, appreciates the AFT’s effort to help members navigate the complexities of using AI. He’s already attended four trainings put on by the Academy. During the critical thinking session, he raised the importance of knowledge for using AI effectively.
“You have to know enough to be able to say, wait a second, this is BS,” he later told me.
Matt Barnum is Chalkbeat’s ideas editor. Reach him at mbarnum@chalkbeat.org.
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