Here are some welcome words:
1. I'm glad you can come back and teach our daughter to dance. We look forward to cooperating with you very much.
Your dance skills and experience have a great influence on our daughter, and we are very grateful to you for being her dance teacher again.
We always think that your dance teaching is very professional and excellent, and we believe that under your guidance, our daughter will make greater progress.
We are very excited about your return, and we believe that with your help, our daughter will become an excellent dancer.
Nice to see you again, and we look forward to seeing your wonderful performance in the dance classroom again.
No matter which expression you choose, make sure your words are sincere and friendly, and let the teacher feel your welcome and support.