You may know “walking school buses” by their other name… walking.

(CNSNews.com) – First Lady Michelle Obama is promoting walking to school as part of her anti-obesity campaign.

In remarks to mayors gathered at the White House last week, the first lady singled out Knox County, Tenn., which – inspired by Mrs. Obama’s “Let’s Move!” campaign — has created a bike-share program and something called a “walking school bus.”

“I’ve heard more and more of this kind of walking school bus happening all over the country — so that kids can get exercise on the way to school, kind of like we did when we were growing up,” she said.

A “walking school bus” is a group of children who walk to school with adult chaperones.

“You remember the miles of walking you did with a sweet potato in your pocket?” Mrs. Obama asked a laughing audience.  “We all heard that story.  My mother repeated it just yesterday. And that’s what Let’s Move! is all about,” she said.  “That’s what we’re really trying to do here.