它是什么？

Canes, walkers, wheelchairs, or other devices used to aid in mobility.

它在哪里找到？

With individual students.

我该如何使用它？

Make space for a student to move freely using their mobility device—clear chairs out of the way, make sure there’s a ramp up to the stage, etc. Do not touch someone’s mobility device without permission: It is an extension of their body and should be treated as such.