Educating Children Outdoors (ECO) Teen Naturalists monitor the phenology of flora and fauna species at class locations in Tucson, Casa Grande, and Phoenix. Our goal is for the teens to learn through inquiry and project based learning methods and Nature's Notebook is a great way to help us accomplish this. Our program mission is to help teens explore nature's wonders and develop a strong sense of place which will help them become stewards of the natural areas in their community. So in addition to monitoring the phenology at our class sites, we will be monitoring river flow, and conducting water quality testing, macroinvertebrate surveys, soil quality testing, bio blitzes, and more. To encourage the teens to become stewards of the sites we exolore we will be conducting trash clean ups and removing invasive species. By combining all of these community science and stewardship opportunities the teens will be able to better understand ecological connections and natural processes.