Ingersoll, RichardMerrill, LisaStuckey, Daniel2023-05-222023-05-222018-05-012019-10-18https://repository.upenn.edu/handle/20.500.14332/35329An analysis of nearly 30 years of data on the teaching force sheds new light on the makeup of the occupation—and on staffing priorities.Posted with permission from Educational Leadership.EducationArticle