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The Bell Ringer

"21st Century Skills" and the Math Wars are so back

Hard to tell if it's 2013 or 2026

Holly Korbey's avatar
Holly Korbey
Apr 22, 2026
∙ Paid

Welcome to Public Notice, where science of learning insiders get their news. In today’s newsletter: Why is a large portion of the education industry still spending millions on “21st Century Skills”? The Math Wars are heating up (again). Thinking of submitting a proposal to speak at the Teaching That Succeeds Symposium? We answer your questions about what to include. RSVP to our first movie watch party, and more, more, more.

*If you’ve got news, a tip, an upcoming report or event you’d like to share with The Bell Ringer community, give me a shout and put “Public Notice” in the subject line.

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* Oh look, we are reinventing high school—again.

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