I walked into John H. White’s “Intro to Photojournalism” class last week, expecting to observe a lesson and instead, I watched a philosophy of teaching unfold. White, a Pulitzer Prize–winning photojournalist and longtime Columbia College professor, does not teach with detailed slides or modules. He teaches by presence. By story. By standing around photographs with students and asking them to look closely, at the pictures and at each other. When he was teaching, no one was on a screen.