Two food cooperatives in the Twin Cities are teaching young children healthy food choices and organic farming. The project includes classroom instruction about growing food and field trips to organic grain and vegetable farms near the metropolitan area. A group of homeless inner-city children recently toured a small farm in Wright County. Minnesota Public Radio's Tim Pugmire reports... (Sound) About 30 children from the Learning Center school in Minneapolis explore the fields at River Bend Farm near Delano. They push single-file up and down the rows of radishes and wheat, trying hard to avoid ste