(CNN) A Florida teacher has been suspended after his school district concluded he repeatedly used the N-word in class, and told his 7th and 8th graders not to date African-Americans "because they are not worth it," among other violations.

David Swinyar, who says he is white in his personnel file, teaches math at Kernan Middle School in Jacksonville. The school has 1,148 students — 22.6 percent of whom are African-American.

Just after lunch on October 6, 2017, a student told a school board investigator that their teacher, Swinyar, and students were discussing relationships.

"If your boyfriend says bad things to you and/or treats you wrong, that means he's acting like a n-----," Swinyar said according to student testimony in a school district investigative report. "You all should not be dating all these different African-American boys because they are not worth it."

A separate incident

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