The Open Spaces as Learning Places curriculum was developed to teach New Haven students about environmental stewardship through exploration of open space sites in their communities. The curriculum targets 6th grade and aligns with state-mandated science standards. These students are old enough to understand and appreciate the complex nature of local ecological systems and young enough to retain their sense of wonder that comes from investigating the world around them. Yale F&ES students taught the curriculum in dozens of classrooms over 8 years. The positive response by principals, teachers and their students led the New Haven Board of Education to adopt the Open Spaces curriculum as the required instruction in 2009. Thirty New Haven teachers attended Yale F&ES for a week-long training to prepare for the transition and to lead the instruction.