The University of California San Diego is one of the best public colleges in America. So it was fairly shocking when the school released a report on the steep decline in academic preparedness of its freshman. The number of incoming students in need of remedial math has surged in the past few years. These students did not fail high school math. Many of them got straight A's. Other colleges have seen similar trends: declining mathematical ability from students who aced their high school tests.

I think that there are several ways to frame the problem we’re looking at here. One is that American kids can’t do math: That’s the headline of a recent Atlantic article by Rose Horowitch. Another frame, as Kelsey Piper writes in the online magazine The Argument, is that grades have stopped meaning anything. I think that the full story is somewhere in between. The age of grade inflation is also the age of achievement deflation. We are giving more and more A's to students who are learning less and less.

There is a lot of talk these days about America moving into a postliterate future. One piece of evidence for this is declining test scores for literacy among students and adults. Fewer people talk about a post-numerate future. The problem here is bigger than UC San Diego. National assessments in the U.S. and even throughout the developed world show that people are getting worse at math. But why?

Today we have three guests to help us answer these questions. Rose Horowitch of The Atlantic, Kelsey Piper of The Argument, and Joshua Goodman, an associate professor of education and economics at Boston University. We talk about plummeting math scores for American students, why it’s happening, and why it matters at a moment when carbon-based humans seem to be getting dumber at the very moment that silicon-based machines are getting smarter.

If you have questions, observations, or ideas for future episodes, email us at PlainEnglish@Spotify.com.

Host: Derek Thompson

Guests: Rose Horowitch, Kelsey Piper and Joshua Goodman

Producers: Devon Baroldi

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