The document discusses the lack of male teachers in PK-12 classrooms and examines potential explanations and solutions. It notes that the percentage of male teachers has declined to a 40-year low and explores historical, demographic, and sociological factors contributing to this trend. Programs discussed aim to increase the number of male teachers, especially among populations believed more likely to enter the profession, such as the "Call Me MISTER" and "Troops-to-Teachers" initiatives. The document calls for new research on effective recruitment models focusing on the education system, societal issues, and exemplar programs that have successfully produced more male teachers.