This Partnerships Working Group (PWG) study responds to recommendations from the National Research Council's (NRC) NOAA's Education Program: Review and Critique (2010) for NOAA to better understand how NOAA Education partnerships are formed, fostered, sustained, and evaluated. The NRC report noted that while partnerships were mentioned as a means of achieving NOAA Education strategic goals and objectives, "there is limited evidence that current evaluations conducted by NOAA account for the influence of partnerships in achieving outcomes and impacts. In addition, most evaluations do not attempt to observe the underlying partnership or explore this as a factor in assessment" (p. 124). The goal of this study is to provide information and recommendations for the NOAA Education Council (Council) and NOAA Education community to use in making strategic decisions regarding NOAA Education partnerships. The PWG was formed to conduct a Partnerships Portfolio Review (PPR). The PWG was charged with reviewing and evaluating a portfolio of NOAA Education partnerships. To carry out this charge, the PWG reviewed existing documents, revised and implemented a survey, and developed case studies. From this analysis, the group identified important elements of successful partnerships that can be used to evaluate existing partnerships and inform the development of future partnerships. The lessons learned from this review inform a set of actionable recommendations for the Council to consider. The PWG conducted the evaluation study from January 2013 to February 2014. The evaluation approach was a participatory process, focusing on the involvement of staff from multiple programs in the evaluation of NOAA Education partnerships with the support of professional evaluators. This approach is called a portfolio review.