The Hechinger Report is a national nonprofit newsroom that reports on one topic: education. Sign up for our weekly newsletters to get stories like this delivered directly to your inbox.

Our recent post on the long schools days that some Chinese students put in got me wondering what kind of connection there might be between lots of classroom time and student performance on an international level. After all, the Chinese scored remarkably high in the latest PISA test scores.

Turns out there really isn’t an ironclad connection, as the graphic below shows. Certainly some countries with lots of instructional time perform well, but other top-ranking nations, like Finland, are able to post high scores with much less classroom time. And countries like the US can put in lots of class time and still get average scores.

Class time and test scores

The Hechinger Report provides in-depth, fact-based, unbiased reporting on education that is free to all readers. But that doesn't mean it's free to produce. Our work keeps educators and the public informed about pressing issues at schools and on campuses throughout the country. We tell the whole story, even when the details are inconvenient. Help us keep doing that.

Join us today.

Davin McHenry is the web editor, responsible for overseeing The Hechinger Report website and supporting technical innovations that enhance the site. He has worked at Hechinger since the site's founding...

Letters to the Editor

At The Hechinger Report, we publish thoughtful letters from readers that contribute to the ongoing discussion about the education topics we cover. Please read our guidelines for more information.

By submitting your name, you grant us permission to publish it with your letter. We will never publish your email. You must fill out all fields to submit a letter.

Your email address will not be published.