After years of skyrocketing test scores, a school in Charleston, S.C., is the subject of a fraud investigation.

A federal judge upheld New York City’s policy prohibiting teachers from wearing political buttons in the classroom, but said they could place campaign material into colleagues’ mailboxes.

The new law requires school districts and public agencies to wait a year before hiring a retired worker into the same or similar position.

The New York City teachers’ union claims that a policy banning political pins and signs in schools violates teachers’ First Amendment rights by blocking them from political expression.

New York City is beginning to measure the performance of thousands of elementary-school teachers based on how much their students improve on math and reading tests.

The announcement that the school system must cut its budget has renewed a push to convince the teachers’ union to end the policy of keeping reserve teachers on the payroll.

Teachers and principals at five failed schools earned cash bonuses for their successes on standardized tests, which officials explained largely as a question of short-term versus long-term goals.

A report finds that New York City could pay teachers without permanent placements more than $74 million to be substitutes or replacements.

Five studies in the new world of online lecturing.

Among the one million-plus students and 80,000 teachers who started classes Tuesday at 1,499 schools around New York City, some were attending for the first time.