Ответ:
Dear Rachel,
I hope you're doing well. I'm sorry to hear about the incident with your teacher. Regarding your questions, using phones at school is generally not allowed here. As for myself, I prefer not to use my phone during lessons as it can be distracting. If caught, teachers here usually remind us of the school rules and ask us to put our phones away. It's important to stay focused on learning during class time. Thank you for sharing your experience with me.
Best wishes, [Your Name]