Learning to write an effective cover letter is an important skill that will serve you well once you finish school and begin applying for a job. Writing a cover letter for a school report follows a similar format to writing a cover letter that accompanies a resume. Keep your cover letter to two pages or less, and focus on the skills and research you conducted that qualify you to write the report.
Start a new word document. Set the format to include top, right and left margins of one inch, a bottom margin of 1 1/2 half inches, single-spaced, with Times New Roman font at 12-point size.
Write a formal salutation directly addressing your teacher or professor. For example, "Dear Mr./Mrs. (Teacher Name)".
Write the first paragraph and state the title and basic description of your report. Include the purpose of your report, such as whether it was a research study or an analysis, and what purpose the report serves.
Write the second paragraph, splitting it into two paragraphs if necessary. Elaborate on what the report is about and your reasons for writing it--aside from it being an assignment. Explain what qualifies you to write this report, and what research you did to find the information included. Do not merely summarize the report itself, but instead provide your teacher with a "behind the scenes look" at the work you put into the report.
Write the final paragraph and mention any other materials accompanying the report, such as a bibliography or copies of research. Thank your teacher for his time, type a formal closing and type your name underneath.
Print the cover letter and sign your name beneath your typed name. Turn in the cover letter on top of your school report.