Что это?

Fabric or shades to dim lighting in the classroom.

Где его найти?

Covering fluorescent or other lights in the room.

Как мне его использовать?

Certain types of lighting, especially fluorescent, can cause light sensitivity. Sometimes the sound in the bulbs is distracting, so natural light might be best if it’s an option! Teaching Artists might not have the option to add fabric shades to a room, but if you see them (or notice that the lights are always off, etc.), you might guess that someone in the room has light sensitivity.