Simply replace the unfilled areas such as "" and "[date]" with your information.
Dear [School Official],
This letter is to notify you of our intent to home school our [son/daughter], [child's name] in the [number] grade for the [year] school year.
Enclosed, you will find a preliminary list of the curriculum, books, and other materials I plan to use. However, I may exercise the right to revise or add to this list in order to best reach the educational goals we have set in place.
I would appreciate it if you would send me a written acknowledgement of this letter. If you have any questions or comments, please feel free to reach me at [contact information].