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No, a portable is kind of like a RV. Im pretty sure it can be use for other things beside classrooms. A portable can be moved. A portable can be a classroom. But thats not only what it is. Our school has them outside because there is not enough space inside for more classrooms. Hopes this makes sense:)

Portable means something can be moved from one place to another. Schools that have outgrown their original brick structures and don't have enough classrooms sometimes put movable trailer- like rooms on school grounds to use as classrooms. These are sometimes called"portables " because they aren't permanent and can be moved.

Its a classroom. A portable is a little building with classrooms in it.

a portable classroom would be in one of the small trailer buildings that can be moved around.

so although portables are often used as classrooms, and mobile offices. no. she is wrong.