General Appreciation:
* "Thank you for your dedication and hard work this year. I truly appreciate your passion for teaching."
* "I'm so grateful for your support and guidance. You've made a real difference in my/my child's learning."
* "Thank you for creating such a positive and engaging learning environment."
End of Year:
* "Wishing you a relaxing and well-deserved summer break!"
* "Thank you for a wonderful year of learning. I've learned so much!"
* "I'll miss your class/lessons next year. Thank you for everything."
Holiday-Specific (adapt as needed):
* "Happy Holidays! Wishing you joy and peace during this special time."
* "Season's Greetings! Thank you for all you do."
For a Specific Achievement:
* "Congratulations on [achievement]! You deserve all the recognition." (e.g., award, successful project)
* "I was so impressed by [specific example of their teaching]. It really helped me/my child."
For a younger student (or parent writing on behalf of child):
* "Thank you for being such a nice teacher!"
* "You're the best teacher ever!" (simple, but sincere)
Remember to personalize your message to make it more meaningful. Adding a specific detail about something you appreciate will make it even more impactful.