The justices ruled against a Maryland law that results in double taxation of income for some taxpayers, a decision that could reduce state and county funding for schools.
Following the advice of the Obama administration, the justices turn away a case involving the "stay put" provision of the Individuals with Disabilities Education Act.
A judge rules that an 8th grader's Facebook rant that his teacher "needs to be shot" was not a true threat of violence.
The justices appeared sharply divided Tuesday over whether states must license same-sex marriages, with lengthy arguments often focusing on the effect of state policies on children.
The retired U.S. Supreme Court justice was lauded for founding iCivics, a program of online educational games to teach about government.
The justices declined to take a case involving allegations that a Pennsylvania district funneled a disproportionate number of African-American students into special education.
The district's use of yoga in its physical education classes does not impermissibly advance religion, despite yoga's roots in Hinduism, the state court rules.
Two school employees have no right of privacy against the disclosure that they are under investigation, Washington state's highest court has ruled.
The justices in 1985 heard arguments about an Oklahoma law that barred speech by teachers "advocating, encouraging, or promoting" homosexuality.
The justices refused to take up a case involving students wearing American flag apparel and another on a church's right to use school buildings for weekend worship services.