CREATE TABLE table_26255 ("Year" TEXT, "District-wide" FLOAT, "High schools" FLOAT, "Middle schools" FLOAT, "Elementary schools" FLOAT, "Other programs & adjustments" FLOAT)

Name the most middle schools for 2005-2006
SELECT MAX("Middle schools") FROM table_26255 WHERE "Year" = '2005-2006'
SELECT MAX("Middle schools") FROM "table_26255" WHERE "Year" = '2005-2006'