While the headline refers to the 24 poems for middle and high school, the We Are Teachers page has a link to 25 elementary-appropriate poems as well.
http://www.weareteachers.com/24-must-share-poems-for-middle-school-and-high-school/
http://www.weareteachers.com/24-must-share-poems-for-middle-school-and-high-school/