We couldn't ask our DD5's teacher for a letter (preK) because during the school year, when DD and I begged her to do more with her in the classroom that would be interesting for her, the teacher responded with "I don't want her to feel different". Then, she would call me and say things like "she seems to..um...think differently" but then couldn't explain what she meant by it.
Needless to say, I didn't ask her for a recommendation letter. So, even us parents who do use schools can't always think of an obvious person for these letters.
