Denver teachers went on strike Monday after failing to reach a deal with administrators over pay following 14 months of negotiations.
Denver's teachers started picketing before the start of the school day and students crossed through the picket lines on their way to class in some locations. Students in at least one school walked out of class and demonstrated in support of their teachers. The city's schools will remain open during the strike and will be staffed by administrators and substitute teachers, the school district said. But classes for 5,000 preschool children were canceled because the district does not have the staff to take care of them.