(CNN)A White high school teacher is on "home assignment" and under investigation after he showed up to teach in blackface, according to the school principal.
A business teacher at Parkdale Collegiate Institute, a public high school in Parkdale, near Toronto, Ontario, joined other staff and students who were dressed up for Halloween Friday, according to a letter sent to parents, guardians and students last weekend from the school's principal, Julie Ardell.
But the teacher's choice of black paint made students in his class uncomfortable, one of his students, who is not being named at his parents' request, told CNN Tuesday.
Racism and racial tensions have been at the forefront of conversations in school board meetings and classrooms across the world.
"It was really uncomfortable and disgusting and yeah, it was weird," the student said. "I didn't really feel attacked because I'm not Black. But like, even as a White person. I was like, this is totally gross."
In her letter, Ardell said as soon as the incident was brought to their attention, they immediately took action by asking the teacher to wash their face "as to not cause further harm."
"On behalf of Parkdale CI, I acknowledge and regret the harm this incident has caused to students, staff and families and our shared school climate," Ardell wrote. "At our school, we are committed to creating a teaching and learning environment that is equitable and inclusive for all students, staff and families. While we have begun the work of addressing anti-Black racism and all forms of discrimination, it is clear that we must do more."
The teacher has been placed on "home assignment," or removed from the school until an investigation has been completed, Ryan Bird of the Toronto District School Board told CNN. Disciplinary action will be considered after the investigation.
It's unclear how long the teacher has worked at Parkdale Collegiate Institute.
CNN has reached out to the teacher but has not received a response.
Blackface isn't just about painting skin darker or putting on a costume. The origins of blackface date back to the minstrel shows of the mid-19th century. White performers would darken their skin with polish and cork, put on tattered clothing and exaggerate their features to look stereotypically "Black." The first minstrel shows mimicked enslaved Africans on Southern plantations, depicting Black people as lazy, ignorant, cowardly or hypersexual, according to the Smithsonian's National Museum of African American History and Culture.
Students policing staff
"Caricatures of peoples' race or culture are not appropriate and are offensive and hurtful," Ardell wrote in the letter sent to the Parkdale Collegiate Institute community. "Regardless of whether this was intended or not, it was racist and dehumanizing."
Liz Ikiriko and Clay Stang's mixed-race son, Otis, is also one of the teacher's students, and they told CNN their son was shocked to see his teacher show up to school in black face paint.
When other students asked the teacher what he was dressed up as, he told them he did not have a costume and this is what his costume was, Ikiriko said.
"He (Otis) said, 'I didn't know what to do,'" Ikiriko said. "I think he's like a lot of kids, they're not used to ... challenging authority ... or people in leadership positions, so he said, 'I didn't know what to do.'"
"And I think that's the thing that is really upsetting because I think it was the first time that he really learned that he can't count on his teachers, like honest educators to be there to care, to protect him and to educate him," Ikiriko said.
The student who spoke to CNN said he arrived at school earlier than most of his peers and noticed his teacher's painted black face right away but thought it was part of a bigger costume, or perhaps he was going to add to it with other props, he told CNN. When the teacher did not add anything and started class, students started taking pictures and talking among themselves about what they were witnessing, the student said.
"It was really weird," the student said. "And then we went down for like this kind of like an assembly thing, all the grade nines for Halloween, and (the teacher was) just walking around in blackface and teachers are just walking around (the teacher), they're not even talking to (the teacher) about it and I thought 'what is happening?'"
Race or race-related complaints make up more than half the district's complaints, an internal report found
"Every Halloween, Black people in Canada, just like in the United States, we kind of hold our breath to see what's going to happen, if there's going to be some announcement," Cheryl Thompson, an assistant professor at Ryerson University in Toronto who has studied blackface in Canada for more than 10 years, told CNN. "And because we're in Covid times, we're not hearing about it at the Halloween party."
"So instead, when I heard that it was a teacher, he was dressed up at the school because the teachers were allowed to dress up, I wasn't shocked, I was only shocked at the response, to be honest," Thompson said.