This handbook was developed by the National Marine Educators Association, with the support of NOAA, to help educators and other ocean advocates teach, learn, and communicate about the ocean. Included are the 28 conceptual flow diagrams of the Ocean Literacy Scope and Sequence for Grades K–12, an article explaining the theoretical basis for the scope and sequence, the Ocean Literacy Alignment to Next Generation Science Standards, as well as brief explanations about how to use these tools, their origins, and purposes.