Washington (CNN) — The District of Columbia public school system announced Friday that it is letting 226 employees go for poor performance under the education assessment system IMPACT.

Schools Chancellor Michelle Rhee said all D.C. public school students have "a right to a highly effective teacher."

Another 76 employees will be terminated because of licensing issues, schools Chancellor Michelle Rhee said in a news release. Of the 302 employees who are losing their jobs, 241 are teachers, she said.

"Every child in a District of Columbia public school has a right to a highly effective teacher — in every classroom of every school, of every neighborhood or every ward, in this city," Rhee said.

Rhee said on CNN's "John King, USA" that she thought the cleanup was a long time coming.

"We want to get along with the union. We want to get along with this person or that person. We don't want to fire anyone," she said.

"But in the meantime, children have been done a disservice every single day. We have graduated a generation of Washingtonians who don't have the skills and knowledge that they need to be productive members of society because our schools have failed them."

Rhee did not break down the number of teachers fired for poor performance versus licensing issues.

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