Nearly three months after a massive tornado destroyed their schools, students heading back to school Friday in Moore, Okla., will attend classes in a church and others in a building loaned by a junior high. Two elementary schools in the city were leveled during the May 20 twister that claimed 25 lives, including seven third-grade students. After the disaster, school officials immediately decided that classes would be back in session on Aug. 16 and they set out to find sites to hold classes for one year while the schools are rebuilt. "We are faced with a new normal. That new normal is about moving forward, rebuilding and doing what we need to do for this community, with the understanding that we won't forget May 20," Supt. Robert Romines told NBC News.