New York’s Department of Education on Thursday approved sweeping changes to the way students are admitted to middle schools across an entire Brooklyn district, marking one of the most far-reaching integration efforts under Mayor Bill de Blasio’s administration.

Along with the admissions overhaul, the city launched $2 million in new grants for other districts that want to develop their own integration plans, signaling that officials want local communities to continue to take the lead in addressing a systemic problem.

Officials also announced that an existing citywide school diversity task force will continue to advise city leaders on school diversity issues even after the group issues its recommendations this winter.  

Together, the moves dramatically ramp up the city’s efforts to integrate one of the country’s most segregated school systems — something de Blasio has only reluctantly taken on. While the mayor has been criticized for steadfastly avoiding even saying the word “segregation,” the issue has become impossible to ignore with the arrival of schools Chancellor Richard Carranza, who has captured national attention for his frank calls for action, coupled with relentless activism from some parents, educators, and elected officials.

“Momentum for change is growing,” de Blasio said at a press conference at M.S. 51 in Park Slope, a sought-after middle school that the mayor’s own children attended. “What’s so powerful is that it is coming from the grassroots.”

The middle school admissions changes are the culmination of years of advocacy from critics who blamed a complicated and competitive admissions process for exacerbating segregation in District 15, which encompasses brownstone neighborhoods such as Carroll Gardens and Park Slope and immigrant enclaves including Red Hook and Sunset Park.

Under the new system, District 15 middle schools will no longer “screen” their students based on factors such as report card grades, test scores, or auditions for performing arts programs — eliminating selective admissions criteria altogether. Instead, the district will use a lottery that gives extra weight to students who come from low-income families, are learning English as a new language, or are homeless.

The aim is to enroll a similar share of needy students across each of the district’s 11 middle schools. And since class is often tied to race and ethnicity, the lottery priority could also spur student diversity on a range of different measures.

“The current District 15 middle school admissions process presents itself as a system of choice and meritocracy, but it functions as a system of hoarding privilege,” said Councilman Brad Lander, who has been supportive of the diversity push.

Advocates hope that District 15 will be a template for integration efforts elsewhere in the city. The process has been hailed for being far more inclusive — and less contentious — then the path that helped lead to the creation of two other districtwide integration plans. District 3, which encompasses the Upper West Side and part of Harlem, recently approved middle school admissions changes that give priority to students from low income families and those with low test scores. It came on the heels of a similar plan for elementary schools in District 1, which includes the Lower East Side, East Village, and part of Chinatown.

The new grants are expected to support similar work in about 10 districts, with about $150,000 dedicated to each. In District 15, the city spent about $120,000 for a planning firm that essentially served as a mediator throughout a year-long community engagement process to develop the changes that were ultimately approved. City officials expect the money to go towards districts that have already received a state grant to tackle diversity issues. Those communities span the city from Staten Island, to the Bronx, to Coney Island.

“We’re signaling we want communities to do this work and we’re going to pay for it. We’re going to invest in this work,” Carranza said.

Critics have called on the city to take a more aggressive role in leading citywide efforts to integrate schools, rather than leaving it up to local communities that may actively resist change. De Blasio, who grew up in Cambridge when Boston was roiled by protests against busing students to integrate schools, said diversity plans should reflect the unique reality of each community. But he also said he hopes that successful integration efforts will serve as an example to nudge other school districts forward.

“I think we have to maximize parent involvement, community involvement, and believe that, that will get us to a good place,” de Blasio said. “And if we find where there’s something that can be done and parents are not yet there, we’re obviously going to work hard to get them there.”

In District 15, the admissions changes are just the first step towards integrating schools in a district where students are starkly segregated by race and class. Families will still be free to apply to the schools of their choice, so overhauling enrollment policies will have little effect unless parents are willing to consider a wide range of options.

Winning over parents presents a formidable challenge since middle class and white families in District 15 clamor to get into just a few vaunted schools, and parents of color may feel unsure about venturing beyond their neighborhood. To grapple with parents’ apprehension, advocates fought to couple the admissions changes with efforts to make schools more inclusive and appealing to families.

“Our work is only starting,” said Carrie McLaren, the mom of a fifth grader in Boerum Hill, who was involved in drafting the district’s integration plan.

The city announced it would dedicate $500,000 towards new resources, training, and other supports for parents and educators to help make the plan work. A new coordinator will be responsible for helping families navigate the admissions process, and an outreach team is tasked with contacting every parent with information about how to apply to middle schools. Additionally, it will be up to a new “diversity, equity, and integration coordinator” to oversee the district’s work, which will include providing teachers with anti-bias training, social-emotional learning, and alternative discipline practices.

Advocates pushed for those measures to try to make schools more fair and inclusive of students from different backgrounds. They called for the training for teachers and support in creating classroom materials that reflect diverse cultural histories and viewpoints, as well as the overhaul of discipline practices — which often treat black and Hispanic students, and those with disabilities, more harshly than their peers.

“If we’re simply moving bodies, and not changing pedagogically or culturally, then we’re ultimately setting up students of color to be in environments where they’re not welcome,” said Matt Gonzales, an integration advocate with the nonprofit New York Appleseed.

For Laura Espinoza, a mother in Sunset Park who helped draft the District 15 integration plan, the real work lies in making sure her community schools are equipped with the same resources as those in more affluent neighborhoods. Admissions changes alone don’t solve that underlying problem.

“The solution comes through focusing on the resources schools have,” she said. “Why are they called public schools if they are given more in some areas, and less in others?”

Advocates have called on the city to focus on the distribution of resources within schools as part of its integration effort, including an analysis of arts programming and even parent fundraising — moves that Espinoza hopes become a reality and not “only words.” The city announced “targeted funding” for technology and other resources will be part of the District 15 plan.

Messaging will also be an important piece of the work ahead. McLaren said families will be responsible for reshaping narratives around what makes schools desirable, and also taking a hard look at their own school’s practices and working across communities to problem-solve when barriers to integration arise.

“As a parent, and a white parent specifically, I see my role as having to talk to other white parents… and think about how our structural inequities have fed stereotypes and bias,” McLaren said. “It all takes a lot of work, and I don’t think there are easy answers, but at least this is changing the conversation.”