With glasses perched on her nose and preschoolers gathered at her feet, the volunteer known affectionately as "Grandma Ruth" began to read.
Nursery rhymes tumbled out of the centenarian's mouth while the eager children hung on her every word.
The youngsters have become accustomed to Tuesday morning story times. Each week, Temple Israel's eldest congregant visits all seven of the Minneapolis synagogue's early childhood classes.
"I wanted to do some good," Ruth Knelman said. "People are so involved in their own lives. You can't be all for yourself."
When she finished the picture book, the 108-year-old slowly pushed herself up from the couch and waved goodbye.
"I'm getting old," quipped Knelman, a petite woman with perfectly coifed white hair and champagne-colored nails.
But she isn't slowing down.
The lifelong altruist splits her time between Temple Israel and the nearby Jefferson Community School, where she reads to kindergartners and helps teachers hand out snacks. Her mission of volunteerism began 65 years ago, when she, her late husband and young son moved to Minneapolis from North Dakota.