Math teacher Emma Chiappetta uses a three-round exercise to help students not only recognize their errors, but also generate ...

2025 was the third hottest year on record, but thousands of cities saw record heat and one broke a record for cold. By Harry Stevens and Eric Niiler Last year was Earth’s third hottest globally, but ...

Iran warns neighbours it could strike US bases if Washington intervenes in protests Tehran has warned neighbouring countries hosting U.S. troops that it would retaliate against American bases if ...