It's getting worse again

When you look at racial segregation in America's schools, another new study presents a bleaker picture. The Harvard report produces some discouraging figures from the country's  public -state-run- schools. After the schools began desegregating in the mid-1950s, they became steadily more integrated until the late 1980s; but then the trend slowed down, and went into reverse. On average, white children go to schools that are 80% white. 

Segregation is worst in the largest city school systems, where enrolment is now overwhelmingly non-white. Yet it is also a problem in the suburbs, where schools once largely white are now mostly black or brown. As the minorities move out from the city centres, whites move even farther out. As the report shows, schools now closely follow housing patterns; if these are heavily segregated, the schools will be too. 

The report's most striking finding, however, is the emergence of Latinos both as the fastest growing minority and the most segregated one. They are divided from whites and blacks not only by race but also by poverty and language. They also do worst at school, with the highest drop-out rates. Their presence now is worrying proof that racial segregation in the schools will get worse before it gets better.

Find a synonym in the text for each of the words below.

a) medium:   Check answer... average  

b) registration:   Check answer... enrolment  

c) model:   Check answer... patterns  

d) noticeable:   Check answer... striking