D.C. Schools Chancellor Kaya Henderson discusses the significantly higher standardized test scores achieved by DCPS students, and dismisses the notion that it's because more middle class students are starting to attend public schools. (The Washington Post)
Mayor Vincent C. Gray greeted the news with a fist-pump and an exaggerated “Yesss!” Schools Chancellor Kaya Henderson saw fit to quote both Abraham Lincoln and Virginia Slims, declaring, “We’re come a long way, baby.” Both had plenty of reason to celebrate Tuesday morning with the release of new standardized test scores showing the most dramatic year-over-year gains for D.C. public school students since 2008. Where only about one-third of DCPS students scored at proficient levels six years ago, that has now risen to about one-half. Charter schools continued to do even better. But the ongoing controversy over test security, the rancorous debate over whether standardized testing is the best way to measure school success and the uncertain impact of demographic changes in the city have given the doubters plenty to feed on. Said Henderson in a PostTV interview: “Haters are going to hate.” More from WAMU-FM, WaTimes, DCistInformer and Ed Week.

In other news:

New scores are “a rebuke to the naysayers who want us to believe reform has failed and a warning to those who would interfere with policies that are clearly gaining traction” (Post editorial)

In case you’re wondering what Michelle Rhee thinks (PostTV)

The top 10 best and worst schools by test performance (Housing Complex)

Contract woes means the city could be out $12 million in scratch-off lottery ticket revenue (Post)

As expected, Jeffrey Thompson is in no rush to see Chartered Health Plan settle provider claims (WBJ)

Cathy Lanier: Green-paint vandalism incidents “seem to be” connected (Post)

No sign of the “this is for Trayvon Martin” attackers, she adds (WJLA-TV)

Feds continue to handle medical marijuana sales with care (WaTimes)

More on the dawn of legal pot sales in D.C. (HuffPoWUSA-TVWAMU-FMCity Desk)

In land deal shocker, JBG passed over for right to redevelop city-owned parcel on Florida Avenue (Housing ComplexWBJUrbanTurf)

With zoning rewrite now with the Zoning Commission, all eyes are on parking (WAMU-FM)

In case you want to read the zoning rewrite submission — all 997 pages of it (ZRR)

Who is wheatpasting flyers attacking Muriel Bowser and Tommy Wells for their LRAA opposition? (Loose Lips)

Campaign finance reports due today (WJLA-TV)

Revised Frederick Douglass Bridge design includes significant new bike amenities (WashCycle)

Some pretty pictures of an apartment you probably can’t afford (Curbed)

Mary Cheh would really like someone to fix the Wilson pool, Tenley library (Loose LipsDCist)

Southeast man confessed to killing pregnant girlfriend, police say (Post)

This year’s property tax sale netted $6.6 million (WBJ)

Deputy Mayor for Public Safety’s office is now tweeting (D.C. Crime Stories)

The MLK Memorial inscription fix is underway (Post)

Study: Lower taxes alone won’t increase D.C.’s appeal to businesses (DCFPI)

When your housing prices are already sky-high, they sometimes don’t rise much (WNEW-FM)

Phil Mendelson felt it was worth his time to tell LivingSocial not to offer gun-themed deals (Loose LipsDCist)

Watch the last bits of the old NPR building come tumbling down (PoPville)

Will Allbritton sale mean a new national focus for NewsChannel 8 (WBJ)

Streetcar work means traffic delays along H Street and Benning Road NE (Dr. Gridlock)

Why, yes, as budgeted, the D.C. Public Library will have Sunday hours come Oct. 1 (PoPville)