We celebrate our third anniversary podcast by inviting six of our favorite guests to tell us what they’ve changed their minds about in language teaching over the course of their careers. Over the course of 35 minutes in our longest episode ever, Carol Lethaby, Dave Weller, Karin Xie, Matt Courtois, Paul Nation and Simon Galloway discuss grammar teaching, teaching roles, the Dunning–Kruger effect, communicative language teaching and more.