Building a strong, diverse teacher workforce in sufficient numbers requires understanding of the points along the pathway into the teaching profession where aspiring teachers are most likely lost. Currently, policymakers, state education agencies, and teacher prep programs have limited insight into the obstacles along this pathway, largely due to…

The School District of Philadelphia's tiered system of selective, nonselective, and charter high schools, and the process for high school choice, has created real variation in the degree to which high schools can successfully meet the needs of ninth graders. Research has shown that the ninth grade year is critical in determining a student's…