Greenbriar Elementary School, in Chicago Heights, Illinois, is part of the Chicago Heights School District 170. The school reports enrolling 280 students in grades kindergarten through eight, and it has 14 teachers on staff.

Greenbriar Elementary School is above the state average but below the district average in terms of the percentage of its students who qualify for free or reduced-price lunches. On average, 44 percent of students in Illinois qualify for free or reduced-price lunch programs, whereas 61 percent of Greenbriar Elementary School students do. At the district level, 82 percent of students qualify.

ProPublica's analysis found that all too often, states and schools provide poor students fewer educational programs like Advanced Placement, gifted and talented programs, and advanced math and science classes. Studies have linked participation in these programs with better outcomes later in life. Our analysis uses free and reduced-price lunch to estimate poverty at schools. We based our findings on the most comprehensive data set of access to advanced classes and special programs in U.S. public schools — known as the Civil Rights Data Set— released by the U.S. Department of Education Office for Civil Rights.

The school hasn't reported or may not have a gifted and talented program.

Westfield Community School is a lower-poverty school than Greenbriar Elementary School, with 11 percent of its students qualifying for free or reduced-price lunch. The school enrolls 1 percent of students in its gifted and talented program. The school is located in Algonquin, Ill.

These data points were reported by schools and districts to the Office for Civil Rights. For more information about the data, see our full methodology.

— Generated by Narrative Science