Parents and education advocates rallied Tuesday on the steps of City Hall to call for better teacher training when it comes to lessons dealing with slavery.

The rally stemmed from an incident at M.S. 118 in which teacher Patricia Cummings reportedly stepped on students' backs to show the class what slavery felt like.

"We don't have to actually make students feel like slaves to teach them about slavery," one parent said.

While at City Hall, the New York City Coalition for Education Justice demanded to meet with Mayor Bill de Blasio. He wasn't there, but they did get to meet with his chief of staff. The group says the mayor's office plans to work with them.

News 12 reached out to the mayor's office and Department of Education for comment but didn't immediately hear back.