CREATE TABLE table_64243 ("School" TEXT, "Location" TEXT, "Mascot" TEXT, "Enrollment" FLOAT, "IHSAA Class" TEXT, "County" TEXT, "Year Joined" FLOAT, "Previous Conference" TEXT)

Name the IHSAA Class of Mascot of pioneers?
SELECT "IHSAA Class" FROM table_64243 WHERE "Mascot" = 'pioneers'
SELECT "IHSAA Class" FROM "table_64243" WHERE "Mascot" = 'pioneers'