Reflection helped students think more carefully about individual mistakes. But it also reduced how many new problems they attempted and how many new mistakes they could learn from.

Technological change is accelerating and raising the stakes for global competition. The regions that lead aren't simply ...

Rooting out corruption was an early focus of Xi’s tenure, but he has intensified the effort in recent years: in 2025, the party’s discipline-inspection authorities filed more than one million cases, ...

I built a coding tutor that won't let me cheat my way through it. Here's the prompt.

Efforts to use the tech to customize lessons to students' individual interest demonstrate its potential—and the shortcomings.