The professional educator and the community

Dr. Musk uses a bulletin board outside her high school classroom to post a spreadsheet with students’ grades. Dr. Musk’s bulletin board is designed to look like a news feed on a social media account of what is happening in the class. The spreadsheet includes students’ names, course grades to date, and scores on tests and assignments.
 

Which of the following principles for professional educators does Dr. Musk most put at risk by posting this spreadsheet?

Professional educators should   maintain student confidentiality.

 Professional educators should use   school supplies for appropriate purposes.

  Professional educators should   avoid inappropriate relationships with students.