CREATE TABLE table_19417 ("School Year" TEXT, "Class A" TEXT, "Class AA" TEXT, "Class AAA" TEXT, "Class AAAA" TEXT, "Class AAAAA" TEXT)

Name the school year for class a for sterling city and little elm
SELECT "School Year" FROM table_19417 WHERE "Class A" = 'Sterling City' AND "Class AA" = 'Little Elm'
SELECT "School Year" FROM "table_19417" WHERE "Class A" = 'Sterling City' AND "Class AA" = 'Little Elm'