Sharon Gamson Danks yar Amurka ce mai tsara muhalli kuma mai tsara shimfidar wurare da aka santa da shawararta na filin makaranta. A cikin 2013, ta kafa makarantar Green Schoolyards America mai zaman kanta don haɓaka ingantaccen filin makarantar birni. Ta tsara filayen wasan waje tare da lambuna masu furanni, tafkuna masu inuwa da hanyoyin yanayi. Littafinta na Asphalt to Ecosystems: Design Ideas for Schoolyard Transformation ya bayyana hanyoyin da za a canza "kwalta ta makarantar gargajiya ta filin lambun da ake ci" kuma ta sami lambar yabo ta American Society of Landscape Architects a 2012. A cikin Mayu 2020, yayin bala'in COVID-19, Danks, tare da Green Schoolyards America da wasu kungiyoyi da yawa, sun kafa National COVID-19 Outdoor Learning Initiative don taimakawa makarantun K-12 na Amurka su shiga cikin sabbin sararin samaniya don rage yaduwar cutar. Ta taimaka wajen ƙirƙirar hanyar yanar gizo mai suna National Outdoor Learning Library don taimakawa malamai su tsara ƙoƙarin koyonsu na waje. Laburaren kan layi yana fasalta samfura don gina wuraren aji na waje da tsare-tsaren darasi. Ta kasance a yankin San Francisco Bay Area.