NPR found that changes over the last 18 months have cost an unknown amount of taxpayer dollars and made the agency's work more complex and potentially inefficient.

Kelly Rogers announced her departure less than a day before much of her staff were scheduled to move to the Department of Health and Human Services building in Washington D.C.

The data, from nearly every public school in the country, reveals disparities in the way students are treated based on race, ethnicity, disability, sex and other factors.

The price of a gallon of diesel is up nearly $2 compared with this time last year. That is meaningful for schools, considering that around 90% of the United States' 480,000 school buses run on diesel.

The department's Office for Civil Rights (OCR) issued new federal guidance warning school leaders that they should not consider a student's race in discipline matters or they would risk being investigated.

There is broad consensus among psychologists that corporal punishment can be harmful to children, but the U.S. has no federal laws banning it in public schools. Instead, it's up to states and local districts to decide.

This year brings a new challenge for Armaghan Khan and many other teachers in the nation's second-largest school district: Ban screen time for younger students, and significantly limit it for older kids.

The Trump administration is proposing significant changes that would diminish the program's federal standards and give states and parents more control.