I created this visualization to accompany another symbol map of Alachua schools (https://bl.ocks.org/ChampeBarton/5eedb82836897078fd69a0f5b5412082) that revealed evidence of segregated schooling across Alachua County. This map provides another reference point for the other, displaying each school's performance based on Florida Department of Education grade reports.

You can see clearly that performance correlates rather strongly with demographic makeup, suggesting perhaps (as does a fair amount of research) that segregated schools hurt the performance of the students being segregated. In other words, sequestering black children in low-income environements creates resource-poor schools in those environments, which damages the performance of the children who attend.

An even clearer and more disappoining relationship between school grades and racial demographic can be seen here, in a bar graph I made with Tableau from the same data: https://public.tableau.com/profile/champe.barton#!/vizhome/AlachuaSchoolGrades/Sheet1?publish=yes.