Red school, blue school

Rebecca Edmunds, a Desert Vista high school student and marching band member, poses for a photo after taking part in a discussion about the presidential election Photograph: Mark J. Rebilas/Rapport

(from left to right) Diana Brown, Amie Hickel and Beth Lyon pose for a portrait Photograph: Mark J. Rebilas/Rapport

Exterior view of Desert Vista high school Photograph: Mark J. Rebilas/Rapport

Desert Vista high school Spanish teacher Shannon O'Hay Photograph: Mark J. Rebilas/Rapport

An American flag hangs in the classroom of Desert Vista high school, as students raise their hands during a discussion about the election Photograph: Mark J. Rebilas/Rapport

Students of Desert Vista high school Spanish teacher Shannon O'Hay mid-discussion Photograph: Mark J. Rebilas/Rapport

Principal Thomas Trotter speaks with students outside Hyde Park Academy high school, Chicago Photograph: John Gress/Rapport

Trenesha Bailey, 16, listens during a discussion at Hyde Park Academy high school, Chicago Photograph: John Gress/Rapport

Teacher Daniel Mullens speaks with his students Photograph: John Gress/Rapport

Students pass a through a metal detector Photograph: John Gress/Rapport

Students Joshua Johnson, 17 (right), James Monroe, 17 (centre) and Dominque Williams, 16, raise the stars and stripes outside Hyde Park Academy high school Photograph: John Gress/Rapport

Students fill the corridor Photograph: John Gress/Rapport

Cheerleader Mariah Griffin, 15, applies make-up to Angelica Smith, 18 Photograph: John Gress/Rapport