Ellen Estrada is principal of Walter Payton College Prep High School on the near north side of Chicago, near downtown. The public magnet school, which opened in 2000, is named in honor of the legendary Chicago Bears football player, who died shortly before it opened. In 2006, Walter Payton won a prestigious Goldman Sachs Prize for Excellence in International Education. Almost all students take four years of a foreign language and have the opportunity to travel abroad. Videoconferences have been held with students in Iraq, South Africa, Morocco, China and Chile, among other places. The school’s reputation for nurturing global citizens brought U.N. Secretary General Ban Ki-moon to the school for a visit in February. Estrada was interviewed by Linda Lantor Fandel, deputy editorial-page editor.