By Desiree Carver-Thomas and Linda Darling-Hammond
As students started a new school year this fall, far too many were greeted by substitute teachers and others who were unprepared for their jobs, as teacher shortages continue to hinder the ability of districts to find fully prepared teachers to fill all of their classrooms.
This year, more than 100,000 classrooms in the U.S. are being staffed by instructors who are uncertified for their assignments and lack the content background and training to teach their classes. These classrooms are disproportionately in schools serving mostly students from low-income families and students of color. In some key subjects, like math, science, and special education, districts of every type and in nearly every state have been hit.