The Carpe Diem charter school in San Antonio announced that it was closing its doors in June. The charter chain relies heavily on “personalized learning” and “blended learning,” which means a lot of instruction takes place on computer screens. It failed to meet academic standards two years in a row and was not likely to improve in its third year.

Carpe Diem was part of the initial cohort of schools recruited by Choose to Succeed, a school choice campaign that sought to attract high-performing charter districts to San Antonio. While the other Choose to Succeed districts — KIPP San Antonio, BASIS, Great Hearts Academies, IDEA Public Schools and Rocketship Education — built campuses across the city, Carpe Diem floundered. Its enrollment hovered between 200 and 250 students at its single campus on the West Side.

Former Mayor Julian Castro embraced charter schools and promised to have a large proportion of the students in the city enrolled in them. He created the campaign that welcomed the big corporate charter chains to San Antonio. The new Mayor, Ron Nuremberg, is not hostile to charters but has emphasized that charters should be complements to high quality public schools, not replacements.