A white California teacher dressed in blackface for his Halloween costume as rapper Common, according to the New York Post. 

In a video recorded during his class, the Milpitas Unified School District teacher recited cringeworthy bars as he mocked the rapper's flow and community activism. 

“Opportunities limitless, possibilities senseless, what will you do?” the teacher rapped. “Millions of people, not enough to eat, what will we do? With A.I. Microsoft technology, the future – it‘s up to you. You can do it. With A.I., the future will blow your mind.”

The teacher also mocked Common's sponsorship with Microsoft's artificial intelligence technology.

School officials decried the teacher's actions.

“The action(s) were inappropriate, unprofessional and insensitive,” school board president Chris Norwood said in a statement. “As an African American man, the history of Blackface reminds me of the cruelty, hatred and fear my parents and people of African Ancestry have dealt with in the past and still experience today around the world.”

The unidentified teacher wore a white turtleneck shirt with a black jacket. In the video posted to Twitter by a 16-year-old student, he was referred to as "Mr. Carter."

However, school officials have not released the teacher's name, citing a personnel matter.

He has since been placed on administrative leave. 

Vice president of the school's Black Student Union Karrington Kenny said the teacher "should have known better," according to Mercury News. 

“In this community, we honestly don’t have room for people, especially people who want to dress up in blackface, to come in here and still try to educate people on topics like this,” Kenny said. “That doesn’t make sense that he gets to stay, and continue working there when he thought this type of behavior was appropriate.”

School officials did not respond with any additional statements about the offensive impersonation. 

The NAACP local chapter is now demanding an investigation take place. Pastor and NAACP member Jethroe Moore said he's received multiple calls and emails about the incident. 

"It’s harmful, it’s hurtful, it’s not the right environment for a student of color to see their teacher perform like that," Moore said.

"Political figures have lost their jobs for wearing blackface 10 years ago. To have someone do it today is totally unacceptable," he added.

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