Editor's note: Standard-Examiner photojournalist Reynaldo Leal spent more than a month in Syria and Turkey on a freelance assignment. This is the first in an occasional series of stories about his experience.ALEPPO, Syria -- The children sat huddled together at their desks. Small puffs of breath formed around their mouths as they repeated every word the teacher said. It was cold in the concrete classroom. Without electricity or fuel for heaters, however, it was useless to complain.Next door, the middle school had been rocketed by the Syrian Army. Debris from that explosion damaged one of the walls of the elementary school. The students were all moved to rooms on the first floor because the second floor was too dangerous.Despite these conditions, 600 children and 20 volunteers continued to show up every day at the Mohammed Al-Masri School."We don't have children here in Aleppo, my friend," said Yusef, our interpreter. "Everyone is a fighter."