How to write a thank you letter to teacher

I would like to write a thank you letter for my favorite teacher What words would I use to express my appreciation for her hard work.

I would like to write a thank you letter to my teacher who is now my manager.What words would I use to thank her to allow me to work in her institute as an english teacher?

well, i AM ALSO AWARE OF  WHAT  YOU  WANT  TO   DO..... OF COURSE, YOU SHOULD MAKE HER  HAPPY... BY FIRST PROVING TO HER THAT  ALL HER HARDSHIP IN TEACHING IS WORTHY!!!  SO YOU SHOULD HAVE A GOOD GRADES!!!  ANOTHER THING YOU SHOULD GIVE HER A  LETTER OR  ANY  SIGNS  THAT SHE IS YOUR FAVORITE TEACHER... LASTLY,,, YOU SHOULD  TRY TO  PROTECT  HER CHARACTERISTICS IF EVER YUR CLASSMATE NEGLECT YOUR FAVORITE TEACHER... HOPE THAT WOULD  HELP .....

thanks

Hitchhiker wrote:

Post:1142 Dear , Teacher I've decided to write you a small note, thanking you for your help. I enjoyed being taught by you immensely; you are an excellent teacher and have inspired me to continue learning with an open and positive mind. I appreciate all your hard work, it’s meant so much to me. Once again, thank you so much for your time, expertise and patience!