The original version of this story appeared in Quanta Magazine. Mathematics started with numbers—clear, concrete, intuitive. Over the last two centuries, however, it has become a far more abstract ...

I have a suggestion for the author of the essay “I’m a Student. Here’s Why Group Work Feels So Unfair ” (Nov. 11, 2022). In Don Meichenbaum’s and my book, Nurturing Independent Learners (Brookline ...