All the staff members of Central Falls High School, who were fired in February as part of a turnaround plan for the chronically underperforming school, will be able to keep their jobs under an agreement ratified Monday. The accord, which the Central Falls Teachers Union overwhelmingly approved Monday afternoon, resolved months of tension and negotiation between the union and the schools superintendent, Frances Gallo. Among other things, it calls for a longer school day, more in-depth teacher evaluations and mandatory after-school tutoring for each student. 'The agreement provides for supports for students and tools for teachers that teachers will need to help our students succeed,' said Jane Sessums, the president of the union, at a news conference with Gallo and the schools commissioner, Deborah Gist. Some of the concessions in Monday's agreement were similar to ones rejected by the union in February, which had led Gallo to choose a federally mandated school turnaround model that called for the entire staff, including 93 teachers, to be terminated by the school board. The decision incited outrage among teachers and unions but was embraced by President Barack Obama and his education secretary, Arne Duncan. In a statement, Duncan praised the plan as well as administrators, union members and teachers for 'working through what has been a very difficult period and coming to agreement on a plan to improve their school.' Teachers do not need to reapply for their jobs under the plan, but they must attend an interview session with the school's leadership team, which will decide how to improve each teacher's performance, Gallo said. A streamlined collective bargaining agreement will be developed in the next year, and the school day might be extended by as much as an hour. Teachers will receive $30 an hour for a mandatory 90 minutes of after-school planning time and a $3,000 stipend for the longer school day, which will be paid with a federal grant, Gallo said. Central Falls High School is one of the state's lowest-performing schools, with a graduation rate of 48 percent. Only 7 percent of students are proficient in mathematics by the 11th grade. Teachers have pointed to increases in standardized test scores in recent years as proof that the school is slowly improving. George McLaughlin, a longtime guidance counselor, said the past few months had been a 'roller coaster, emotionally,' and hoped other districts would not have to go through what happened in Central Falls. 'There has to be a better way than what we did here,' McLaughlin said. 'Let's make sure this never happens again.' 