它是什么？

A means to provide alternative ways for individuals to interact with a script and deliver their dialogue.

它在哪里找到？

Make it yourself.

我该如何使用它？

This can be adapted to your students’ needs. You can create a large-print script, edit dialogue from existing scripts to make it more accessible for the actor playing the part, put dialogue into a student’s communication device, create prompt cards to aid in memory, consider having a shadow actor to drop in lines (standing nearby to say the lines to the actor before they say them to the audience), create physical cues (pairing movement with dialogue to make meaning), etc.