The document provides example phrases for students to use in the classroom when they do not understand something or need clarification. Key phrases include "I don't understand", "I don't know", "Pardon?", "Once more, please", questions asking what a word means or how to say or spell something, and checking if an answer or response is correct with "Is this ok?".

1. Classroom Language
I don't understand
I don't know
Pardon?
Once more, please.
What does _____________ mean?
What's ____________ in English?
How do you say…?
How do you spell?
Is this ok?