On the first day of school I brought my camera to school. I gave the students a piece of 8 x11 cardboard , and asked them to write their names on both sides. As they finished, I asked them to get into groups of three to four students and took photographs of them holding their name cards. After school, I developed the film and printed two sets of photos. That evening, I started to match the names with the faces. I kept one set of pictures at home for about a week so that I could review their names each night. On the second day of school, I put up the other set of photos as a bulletin board  , with a title such as "Presenting Room 108, ..." The kids loved it! After I had learned all of their names I brought the second set back to school and stuck them onto an 8 x11 sheet of paper. I placed it in the classroom for other teachers. The cardboard name cards that were made on the first day were collected and put on a shelf. From time to time, they were given back to the students and placed on their desks so that guests or supply teachers   could identify all of the students. I've been doing this with my grade 7 students for the last nine years and they liked it. It's fun to bring the photos out again at the end of the school year to see how much they have all changed in ten months. The writer of the passage might be a   _  .
head teacher monitor photographer supply teacher