New Marlborough, Mass.

IN a speech last week, President Obama said it was unacceptable that “as many as a quarter of American students are not finishing high school.” But our current educational approach doesn’t just fail to prepare teenagers for graduation or for college academics; it fails to prepare them, in a profound way, for adult life.

We want young people to become independent and capable, yet we structure their days to the minute and give them few opportunities to do anything but answer multiple-choice questions, follow instructions and memorize information. We cast social interaction as an impediment to learning, yet all evidence points to the huge role it plays in their psychological development.

That’s why we need to rethink the very nature of high school itself.

I recently followed a group of eight public high school students, aged 15 to 17, in western Massachusetts as they designed and ran their own school within a school. They represented the usual range: two were close to dropping out before they started the project, while others were honors students. They named their school the Independent Project.

Their guidance counselor was their adviser, consulting with them when the group flagged in energy or encountered an obstacle. Though they sought advice from English, math and science teachers, they were responsible for monitoring one another’s work and giving one another feedback. There were no grades, but at the end of the semester, the students wrote evaluations of their classmates.