Dear [Name of Foreign Teacher],

I hope this letter finds you in good health and spirits. I am writing to express my deepest gratitude and appreciation for your tireless efforts and dedicated teaching during your tenure at our school. Your contributions to our education system have had a profound and positive impact on our lives, and I cannot thank you enough for your amazing work.
From the moment you began instructing us, you inspired a newfound passion for learning that I never knew existed. Your innovative teaching methods and excellent communication skills made even the most challenging subjects accessible, interesting and fun. You always went above and beyond your teaching duties to ensure that each one of us understood and assimilated every lesson. You tirelessly offered additional assistance when we stumbled or struggled with a topic, and you always provided guidance that went well beyond the textbook.
We have learned so much from you, not just academically, but also personally. The lessons that you taught us will stay with us for life. Your positivity, humility, and kindness have made a lasting impact on us, and we are better people for having known you.
Your passion for your work has been infectious, and your enthusiasm has motivated us to strive for excellence in our own lives. You have encouraged us to be curious, challenged us to think critically, and inspired us to seek knowledge and understanding beyond the classroom. Your support and guidance have been invaluable to our growth, and we are grateful for every moment spent under your tutelage.
The lessons, knowledge, and experiences imparted to us by you will be cherished for a lifetime. We will carry them with us as we continue our personal and professional journeys, and they will serve as guiding lights in our lives.
Once again, thank you for your unwavering dedication to our education and for the kindness and patience you have shown us. You will always hold a special place in our hearts, and we will forever be grateful for everything you have done for us. We wish you well in your next journey, and we hope that you will continue to make positive changes in the lives of people wherever you go.
Sincerely,
[Your Name]