摘要：Research has shown that participation in 4-H science, technology, engineering, and mathematics (STEM) programs is associated with positive youth outcomes, including higher science and math standardized test scores. In reflecting on the 4-H Science initiative's logic model and recent evaluative studies of 4-H STEM programs, we identified a need for systematic, comprehensive literature reviews and meta-analyses of published materials about 4-H STEM programs. We issue a challenge to the Cooperative Extension System and land-grant universities to conduct such research to communicate impacts of 4-H STEM programs, describe successful 4-H STEM programs, identify best practices and strengthen 4-H STEM programs, and improve STEM programming for children and youths overall..
关键词：4;H STEM ; literature reviews ; meta;analyses ; experiential learning
