what do i write on the RSVP. my teacher said put my phone number there.

Yes.

You need your name and your phone number.

When writing an RSVP (which stands for "répondez s'il vous plaît" and means "please respond" in French), it is customary to provide certain information. Typically, the following details are included:

1. Your Name: Write your full name or the names of the guests who will be attending the event.

2. Acceptance/Regret: Indicate whether you are accepting or regretting the invitation.

3. Response Deadline: Mention the date by which you need to provide your response.

4. Additional Information: If there are any special dietary requirements, preferences, or other requests, you can include them here.

Typically, providing your phone number on an RSVP is not necessary or common practice. However, your teacher may have specific reasons for requesting it. If you are unsure, it's best to clarify with your teacher why they specifically asked you to include your phone number.

To write the RSVP, you can follow this example:

"Name(s): [Your Name]/[Guest Names]
Accepts/Regrets: [Acceptance or Regret]
Response Deadline: [Date]
Additional Information: [Special requests, dietary requirements, etc.]"

Remember to fill in the necessary details specific to your situation.