The nation's largest school system lurched to life Monday, with all but the students most affected by Sandy making their way back to classes on foot, ferry and subway.
Students at Stuyvesant High School swarmed out of Lower Manhattan's subway stations after electricity was restored to the devastated area by the weekend.
"Being cooped up in my house for nine days was not fun!" said sophomore Nathan Mannes. "I did my homework, and when I finished that I played some video games."
Still, about 100 schools throughout the five boroughs remained closed because of storm damage, a lack of power or because the buildings were being used to shelter people left homeless by Sandy. Mayor Bloomberg said 16 schools were still being used as shelters and that most would move by Wednesday. Some, he said, would continue to be used as schools when children return.
Bloomberg said the attendance rate on Monday was 86 percent, about average for the Monday before Election Day.
At least one school with partial utility service persevered.
"We have power but no heat — so bundle up!" read a sign on the door of the Spruce Street School, which opened last year in a downtown high-rise designed by Frank Gehry.
About 73,000 of the city's 1.1 million public school students were told to stay home Monday while education officials scrambled to ready temporary space for them at functioning schools or to ensure power is back on at the schools they usually attend. Most will report to classrooms on Wednesday, after the Election Day holiday.
In hard-hit New Jersey, buses pulled up to Elementary School 14 in Clifton, where Sheila Carrasquillo dropped off her 11-year-old daughter, Layla. The girl is autistic and suffered through the week at home without special services normally provided at school, including occupational and physical therapy.
"I was trying to keep up some of the routine with her at home," Carrasquillo said.
On storm-tattered Long Island, Bethpage School District was among the few to open Monday. Curious students at Kramer Avenue Elementary School in Plainview asked each other if they had heat and electricity at home.
The answer was "no" for Lori Moerler and her fifth-grade daughter, Elizabeth. No heat, no lights and no water.
"You know what? We are very fortunate," Moerler said after bidding goodbye to her daughter. "There's a lot of people who have nothing. We have our house. We have our family. We're OK."
In Westchester County, Ted Johnson dropped off his two sons at Colonial School in Pelham.
"It's a relief, mostly for them," he said. "They get to go someplace where they have electricity."
In some parts of New York City, some displaced families with no Internet connection or phones got no advance word on whether their kids' schools would open Monday morning. Department of Education spokeswoman Marge Feinberg said the department is using robocalls to inform families of closed schools but she conceded some may not have reliable phone service.
Public School 126 in Chinatown was closed because it had no power. A sign on the door directed families to check the school's website to learn where students will report Wednesday. Some families showed up anyway, greeted by an Education Department employee fluent in Mandarin and Cantonese who explained.
At P.S. 2 in Chinatown, laughter and shouting filled the yard as children played basketball before heading into the classroom. Fourth-grader Helen Chen said she was glad to be back at school after her mundane time off. "It was pretty boring," she said.
A couple blocks away, P.S. 1 also was open as Jacqueline Soto dropped off her fifth-grader, Maria Teresa Rivera. Soto said Maria Teresa spent her week at home watching movies on a battery-powered DVD player. "She didn't want to go out," Soto said.
Soto and her family got power back Friday night. Having the school open was another welcomed sign of returning to normalcy.
"It feels good," she said. "It's good to see people again."