John Bartram High School junior Alyssa Bey tells WCAU-TV (http://bit.ly/187lTzK) that she took the photo last week, during the first week of school. It appears to show a teacher nodding off in a health technology class.
Philadelphia School District spokesman Fernando Gallard says the teacher in the photo has been identified and the district will investigate whether he should be disciplined.
Gallard says the class' regular teacher resigned the first day of schoo, and other teachers were filling in. He says the class won't be offered again until a permanent teacher with the right credentials can be hired.
Information from: WCAU-TV, http://www.nbc10.com