The Department of Education has earned a reputation for making under-the-radar announcements in school 'slack times' -- often, just as a vacation begins. In its recent announcement of a $ 2.5 million donation by the Eli and Edythe Broad Foundationto two charter school networks, made on the first day of spring break, the first day of Passover and the day before Good Friday, the news of the philanthropists' support for the charter networks barely made a ripple in the local press: None of the city's three big dailies published stories on the donation, although Javier Hernandez posted a reporton the Times' City Room blog -- and the Post has run two education opinion pieces in the past few days (an anti-union editorial today and a vitriol-stoked, anti-Weingarten op-ed last week).

Broad has donated more than $ 30 million to school reform since 2002, including $ 5 million to Children First and $ 4 million to the Leadership Academy, which trains principals to become leaders in struggling schools. The current donation will be shared by Uncommon Schools ($ 1.5 million) and the Success Charter Network($ 1 million), to fund expansion of both networks in the New York City area. At present, Uncommon Schools' six Brooklyn schools serve 1000 students; they plan to grow 14 new schools over the next half-decade. The Success Charter Network, founded by former Council member, former Education Committee chair, and frequent UFT nemesis and media darlingEva Moskowitz, enrolls 1000 students in four Harlem schools, plans to increase its reach to 40 schools in the next 10 years.

Broad, who made the announcement at Harlem Success Academy 2 on Thursday, told the educators gathered to listen, "you are the very best in public education," and celebrated the success of the two charter networks, over and above other charters and the public schools in general. (Classes were in session through Good Friday.)

Broad also encouraged the practice of offering charter schools rent-free space in public school buildings, the subject of a recent lawsuit(and DOE change of heart), an unresolved issue taken up in the City Councillast week. The fact that dozens of charters slated to open in September still lack locations increases the real-estate pressure with every passing week.

The bigger question: Is charter-school development displacing investment in the city's traditional public schools? Advocates and adversaries support and rebut both sides of the conversation -- but one thing's certain: It's a question that's not going away.