Each in-depth review included a detailed inventory of the content of the curriculum that addressed concepts and skills related to engineering, technology, mathematics, and science. The research team also identified stated goals, pedagogical strategies, prominent activities, and treatment (if any) of content standards. If available, the team also documented how extensively the curriculum had been implemented and findings related to its impact. The authors of the curriculum were contacted, as needed, to provide background information, clarify details, or confirm researchers’ findings. Detailed written reports for each in-depth review were read and discussed by the committee. Descriptive summaries were prepared for the other curricular documents.