WHAT DIFFERENCE DOES IT MAKE?

Since the 1966 Coleman report, Equality of Educational Opportunity, another debate has waged as to whether money makes a difference to educational outcomes. It is certainly possible to spend money ineffectively; however, studies that have developed more sophisticated measures of schooling show how money, properly spent, makes a difference. Over the past 30 years, a large body of research has shown that four factors consistently influence student achievement: all else equal, students perform better if they are educated in smaller schools where they are well known (300 to 500 students is optimal), have smaller class sizes (especially at the elementary level), receive a challenging curriculum, and have more highly qualified teachers.

Minority students are much less likely than white children to have any of these resources. In predominantly minority schools, which most students of color attend, schools are large (on average, more than twice as large as predominantly white schools and reaching 3,000 students or more in most cities); on average, class sizes are 15 percent larger overall (80 percent larger for non-special education classes); curriculum offerings and materials are lower in quality; and teachers are much less qualified in terms of levels of education, certification, and training in the fields they teach. And in integrated schools, as UCLA professor Jeannie Oakes described in the 1980s and Harvard professor Gary Orfield's research has recently confirmed, most minority students are segregated in lower-track classes with larger class sizes, less qualified teachers, and lower-quality curriculum.

Research shows that teachers' preparation makes a tremendous difference to children's learning. In an analysis of 900 Texas school districts, Harvard economist Ronald Ferguson found that teachers' expertise—as measured by scores on a licensing examination, master's degrees, and experience—was the single most important determinant of student achievement, accounting for roughly 40 percent of the measured variance in students' reading and math achievement gains in grades 1-12. After controlling for socioeconomic status, the large disparities in achievement between black and white students were almost entirely due to differences in the qualifications of their teachers. In combination, differences in teacher expertise and class sizes accounted for as much of the measured variance in achievement as did student and family background.

Ferguson and Duke economist Helen Ladd repeated this analysis in Alabama and again found sizable influences of teacher qualifications and smaller class sizes on achievement gains in math and reading. They found that more of the difference between the high- and low-scoring districts was explained by teacher qualifications and class sizes than by poverty, race, and parent education.

Meanwhile, a Tennessee study found that elementary school students who are assigned to ineffective teachers for three years in a row score nearly 50 percentile points lower on achievement tests than those assigned to highly effective teachers over the same period. Strikingly, minority students are about half as likely to be assigned to the most effective teachers and twice as likely to be assigned to the least effective.

Minority students are put at greatest risk by the American tradition of allowing enormous variation in the qualifications of teachers. The National Commission on Teaching and America's Future found that new teachers hired without meeting certification standards (25 percent of all new teachers) are usually assigned to teach the most disadvantaged students in low-income and high-minority schools, while the most highly educated new teachers are hired largely by wealthier schools. Students in poor or predominantly minority schools are much less likely to have teachers who are fully qualified or hold higher-level degrees. In schools with the highest minority enrollments, for example, students have less than a 50 percent chance of getting a math or science teacher with a license and a degree in the field. In 1994, fully one-third of teachers in high-poverty schools taught without a minor in their main field and nearly 70 percent taught without a minor in their secondary teaching field.

Studies of underprepared teachers consistently find that they are less effective with students and that they have difficulty with curriculum development, classroom management, student motivation, and teaching strategies. With little knowledge about how children grow, learn, and develop, or about what to do to support their learning, these teachers are less likely to understand students' learning styles and differences, to anticipate students' knowledge and potential difficulties, or to plan and redirect instruction to meet students' needs. Nor are they likely to see it as their job to do so, often blaming the students if their teaching is not successful.

Teacher expertise and curriculum quality are interrelated, because a challenging curriculum requires an expert teacher. Research has found that both students and teachers are tracked: that is, the most expert teachers teach the most demanding courses to the most advantaged students, while lower-track students assigned to less able teachers receive lower-quality teaching and less demanding material. Assignment to tracks is also related to race: even when grades and test scores are comparable, black students are more likely to be assigned to lower-track, nonacademic classes.

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Photo Credit for Bearden Elementary: Maude Schuyler Clay
Photo Credit for Walton Elementary: Chris Hamilton