Your phone vibrates, a notification pops up, or you just take a quick glance at the screen. Even minor interruptions can affect your concentration—not least when you're in class. Now, a large randomized trial involving more than 16,000 students in India shows that teaching without access to mob...

Source: [Phys.org](https://phys.org/news/2026-10-college-lessons-grades-large-randomized.html)

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