The Education Cover Letter
How education cover letters should NOT be written
People writing an education cover letter mistakenly think that they are writing a “show off their education cover letter.” Thinking single-mindedly since they are teachers they should write with perfect English, and so they obsess over writing with the most formal, education style sentences humanly possible.
As a result, these letters come out reading stale and dull and like every other boring cover letter that hits the superintendent’s desk.
Lesson Two: An education cover letter must be INTERESTING to read just like every other kind of cover letter, no, make that every kind of letter, period, the first requirement of an education cover letter is to be clear and READABLE. Naturally, you want to avoid making any grammatical errors (especially if you are applying for a job as an English teacher) but other than that, your letter should be conversational in tone.
source
www.amazing-cover-letters.com/cover_letter_resources/education_cover_letter.htm