More Classes in High-Poverty, High-Minority Schools Taught By Out-of-Field Teachers
*Teachers lacking a college major or minor in the field.  Data for secondary-level core academic classes.
Source: Richard M. Ingersoll, University of Pennsylvania.  Original analysis for the Ed Trust of 1999-2000 Schools and Staffing Survey.
High poverty   Low poverty
High minority  Low minority
Note: High Poverty school-50% or more of the students are eligible for free/reduced price lunch.  Low-poverty school -15% or fewer of the students are eligible for free/reduced price lunch. 
High-minority school - 50% or more of the students are nonwhite. Low-minority school- 15% or fewer of the students are nonwhite.
In addition, when Richard Ingersoll analyzed the SAS data, he found that these same schls are more likely to have a higher percentage of classes being taught by tchrs without a major or minor in the field for which they are teaching.  The results are particularly striking in high poverty schls where there is a difference of 13 percentage points.

Definitions
High Poverty-A school where 50% or more of the students are eligible for free/reduced price lunch
Low-poverty-A school where 15% or fewer of the students are eligible for free/reduced price lunch

High-minority-A school where 50% or more of the students are nonwhite.
Low-minority-A school where 15% or fewer of the students are nonwhite.