I have prepared charts and graphs for 8th grade NAEP average scale scores for black, hispanic, and white students in various jurisdictions: the entire nation; all large cities; Washington DC; Florida, Michigan; and Mississippi.
You will see that there was a general upwards trend in math from about 1992 to roughly 2007 or 2009, but the scores have mostly leveled off during the last decade. I included Michigan, since that is the state where current Education Secretary Betsy DeVos has had the mo$t per$sonal influence, but that influence doesn’t look to be positive.
While it’s good that DC’s black students no longer score the lowest in the nation (that would be Michigan – see the first graph), there is another feature of my fair city: very high-performing white students (generally with affluent, well-educated parents) in its unfortunately rather segregated public schools, as you can see in the last graph.