Satisfaction is a metric the annual school surveys try to quantify. SchoolBook’s data reporter combed through recent numbers on the site’s satisfaction index. He found teachers are often less satisfied with a school than the parents. And School District 19 in outer Brooklyn scored the lowest average satisfaction in the city. Dive into the data yourself and share your findings, and questions.

See which middle schools are the top-rated based on their overall progress report scores. We’ve charted the top three in each school district in time for the school tours and admissions process.

An analysis of the attrition rates for the city’s charter schools revealed that charters have lower attrition rates, on average, than district schools. But there were outliers. Here’s the Top 10 list of charter schools with unusually high numbers of students leaving the school. There are interesting stories behind these numbers.

This interactive chart shows the movement of students between district and charter schools in three school districts in Upper Manhattan. It reveals a tremendous amount of mobility in Harlem, which has the highest concentration of charter schools in the city. It also seems to debunk the theory that charter schools “dump” low-performing students conveniently before test-taking time.

Overall, charter schools account for about 10 percent of the city’s public schools but in a handful of neighborhods the concentration is much higher. Check out SchoolBook’s interactive map that shows the latest data on charters in the city.