[Your Full Name]
[Your Address]
[City, State ZIP Code]
[Your Email Address]
[Your Phone Number]

[Date]

[Principal's Name]
[Principal's Title]
[School Name]
[School Address]
[City, State ZIP Code]

Dear [Principal's Name],

I am writing to formally resign from my position as [Grade/Subject] Teacher at [School Name], effective [Last Working Day Date].

Personal health reasons require me to step away from my teaching position at this time. I need to focus on my health and well-being, which requires my full attention.

I have deeply valued my time at [School Name] and am grateful for the opportunity to work with such amazing students and supportive colleagues. The relationships I have built here and the experiences I have gained will always be meaningful to me. Thank you for creating an environment where I could grow as an educator.

To ensure continuity for my students, I will:
- Complete all current grading and assessment work
- Prepare detailed lesson plans and materials for the remainder of the term
- Organize all classroom resources and curriculum materials
- Assist with training my replacement as needed
- Make myself available for questions during the transition

Thank you for your understanding during this difficult time. I wish the school and all my colleagues continued success.

Sincerely,

[Your Signature]
[Your Typed Name]