MILWAUKEE (CBS 58) -- When it comes to learning in school, it's just as important to promote education outside of the classroom like say, on the playground.

Today, on Oct. 13, state and local leaders were at Milwaukee's Nathaniel Hawthorne School to celebrate the latest efforts that are part of a multi-million-dollar effort to transform schoolyards across the city. 

Through a collaboration involving several local organizations, 21 "green" schoolyards have been completed, with another 10 in progress.

The new spaces promote outdoor learning, healthy food access, social/emotional well-being, recreation opportunities, arts and environmental sustainability and urban biodiversity.