Mao Vang knows good teaching is about connecting with her students.
The California-born St. Paul resident says her Hmong heritage makes it easier for some of her students at LEAP High School to identify with her.
"For me, it doesn't take as long to build a relationship," Vang said. "We understand each other."
Vang's students are "newcomers" whose families recently immigrated to the U.S., and they are learning a new language and culture.
"A lot of them, if they don't understand something, they feel more comfortable letting me know," Vang said. "I can become a voice for them."
As the Twin Cities student population diversifies, teachers such as Vang are still rare.
Data from the Minnesota Department of Education show that from 2001 to 2012, the number of minority students in metro-area schools grew by nearly 55,000. They now make up 36 percent of public school enrollment.
A dozen years ago, students of color made up 26 percent of metro students, and much of the new diversity comes in the cities' inner suburbs.
During those dozen years, metro districts added about 300 minority teachers, barely moving the percentage of people of color leading classrooms in the Twin Cities. In the metro area, 94 percent of teachers are white.
Charter schools do better diversifying their teaching staffs, but the schools have seen a decline in minority teachers and students as the number of charters has increased.
In 2012, 11 percent of teachers in metro charter schools were minorities and 57 percent of the students were races other than white. That's a decline from 2001, when 20 percent of teachers and 65 percent of students in metro charter schools were minorities.
Minnesota is not alone in the struggle to bring diversity to the teaching ranks.
A federal survey from 2008, the latest data available, found that nationwide, just 17 percent of educators were minorities while 40 percent of the country's students were children of color.