Dear Mr. Rastelli,
How are you? I hope you and your family are all well during this difficult time. I just wanted to send you this email to say thank you for being such a great teacher and role model. I loved being in your class and working with you in Peer Leadership. What matters most to my parents and me is being a good kid, and I appreciate that you always believe in me, encourage me and support me. Thank you.
I hope to see you soon,
P.S