74 million US residents speak a language other than English at home, 61% of them Spanish. The 2024 Census numbers, and what they say about what to learn.

The State Department says Spanish takes 690 class hours. At 15 minutes a day that is 7.6 years. Here is the math, and what it means for a daily habit.

A meta-analysis of 35 studies found written corrections improved accuracy (g = 0.59), and most of the effect lasted. What that means in practice.

A review of 317 memory experiments found spaced study beat massed study in 259 of 271 comparisons at equal study time. What it means for learning a language.

Students who kept recalling 40 Swahili words remembered 80% a week later. Those who kept rereading them got 36%. Why producing words beats reviewing them.