Across the country, districts and schools are struggling to meet the growing demand for qualified teachers. Indeed, there are some subjects--such as mathematics, science, and special education--in which nearly every state is experiencing a teacher shortage. As a result, states often turn to underqualified teachers to fill the vacuum, a problematic…

Teacher shortages have been worsening in California since 2015. Growth in teacher demand as the economy has improved has collided with steep declines in the supply of new teachers, leading to significant increases in the hiring of underprepared teachers, especially in districts serving high-need students. Shortages are most severe in special…