Today’s fourth and eighth graders are doing better than their predecessors in math and reading, but even with record scores, it’s too early to celebrate.

The vast majority of the students still are not demonstrating solid academic performance in either subject, according to the 2013 Nation’s Report Card, which was released Thursday.

Just 42 percent of fourth graders and 35 percent of eighth graders scored at or above the proficient level in math. In reading, 35 percent of fourth graders and 36 percent of eighth graders hit that mark.

Also, white students again outperformed their Hispanic and African-American counterparts, reinforcing just how tough it is to close achievement gaps among racial groups despite years of focus on the problem.

Still, the nation’s school kids do better today on the test than they did in the early 1990s when such tracking started, with more improvement in math than in reading. Students of all races have shown improvement over the years.

The results come from the National Assessment of Educational Progress, or NAEP, which is given every two years to a sample of fourth and eighth graders.

This year’s results, compared to those in 2011, show average incremental gains of about one or two points on a 500-point scale in math and reading in both grades, although the one-point gain in fourth grade reading was not considered statistically significant.

“Every two years, the gains tend to be small, but over the long run they stack up,” said Jack Buckley, commissioner of the Education Department’s National Center for Education Statistics.

Buckley said he was “heartened” by some of the results, “but there are also some areas where I’d hoped to see improvement where we didn’t.”

The release comes as a new era in education unfolds. President W. Bush’s landmark education law No Child Left Behind, which sought to close achievement gaps among racial groups and have every student doing math and reading at grade level by 2014, has essentially been dismantled.

After Congress failed to update the law before it was due for renewal in 2007, President Barack Obama allowed states to get waivers from it if they showed they have their own plans to prepare students. Most states took him up on the offer.

In the meantime, a majority of states are rolling out Common Core State Standards with the goal of better preparing the nation’s students for college or a job. The states-led standards establish benchmarks for reading and math and replace goals that varied widely from state.

Academic scholars have long debated what effects the law and other state-led reforms have had on test scores.

This year, Tennessee and the District of Columbia, which have both launched high-profile efforts to strengthen education by improving teacher evaluations and by other measures, showed across-the-board growth on the test compared to 2011, likely stoking more debate. Only the Defense Department schools also saw gains in both grade levels and subjects.

In Hawaii, which has also seen a concentrated effort to improve teaching quality, scores also increased with the exception of fourth grade reading. In Iowa and Washington, scores increased except in 8th grade math.

Specifically pointing to Tennessee, Hawaii and D.C., Education Secretary Arne Duncan said on a conference call with reporters that many of the changes seen in these states were “very, very difficult and courageous” and appear to have had an impact.

Chris Minnich, executive director of the Council of Chief State School Officers, said the biggest problem revealed in the results is the large gap that exists between the performances of students of different races.

There was a 26-point gap, for example, between how white and African American 4th graders performed on the math section. In eighth grade reading, white students outperformed Hispanic students by 21 points.

“We still have a situation where you have kids that are left behind. They aren’t given the same instruction. They aren’t given the same expectations as other kids,” Minnich said. He said it’s time for “doubling down and making sure the gaps get smaller.”

Duncan said too many African-American and Hispanic children start kindergarten a year or two behind and that early childhood programs are key to leveling the playing field. Duncan and Obama have lobbied for congressional passage of a preschool-for-all program.

The test was given this year to about 377,000 fourth graders and 342,000 eighth graders. It was taken by students from public and private schools, but state-specific numbers are only from public schools.

In math, students were asked to answer questions about topics such as geometry, algebra and measurement. In reading, students were told to read passages and recall details or interpret them.

(AP)