He was a first-year teacher at Wissahickon High during 9/11. 25 years later, he’s making sure history isn’t lost

Dan Joyce was in his first days on the job as the TV lab teacher at Wissahickon High School. A quarter century later, he’s still there, teaching 12th-grade social studies. Like his job, teaching 9/11 to students has evolved, especially to younger generations of kids with no living memory or firsthand experience. (Photo by Marcin Golba/NurPhoto via Getty Images)