This building was an unused "portable classroom".

"Now we have unused classrooms."

At our recent meeting in an unused classroom, the students turned in itineraries for the upcoming weeks.

Classes started on time, but like Greenwich, students were diverted to any available unused classroom while a moldy wing of the school was cleaned.

They also have no explanation for being in the building, in an unused classroom, at that time of the late afternoon.

Education officials have said that the teacher would face disciplinary charges for failing to lock the unused sixth-floor classroom from which the stool was thrown on Wednesday.

Around 11:30 A.M., as classes were being held, she said, she was lured from the basement cafeteria to an unused classroom on the third floor.

In 2000 the main building had several unused classrooms, but by 2008 the school had 13 portables.

Poets House began modestly, with 600 donated books, in an unused classroom at a public high school in the Chelsea section of Manhattan.

The school also renovated an unused classroom into the "Bolton Internet Cafe."