who founded the school of functionalism and what were its primary beliefs
Functional psychology William James is considered to be the founder of functional psychology. Although he would not consider himself as a functionalist, nor did he truly like the way science divided itself into schools. John Dewey, George Herbert Mead, Harvey A. Carr, and especially James Rowland Angell were the main proponents of functionalism at the University of Chicago. Another group at Columbia, including notably James McKeen Cattell, Edward L. Thorndike, and Robert S. Woodworth, were also considered functionalists and shared some of the opinions of Chicago's professors. Egon Brunswik represents a more recent, but Continental, version. The functionalists retained an emphasis on conscious experience.
Horace Mann Arguing that universal public education was the best way to turn unruly American children into disciplined, judicious republican citizens, Mann won widespread approval from modernizers, especially in the Whig Party, for building public schools. Most states adopted a version of the system Mann established in Massachusetts, especially the program for normal schools to train professional teachers.[2] Educational historians credit Horace Mann as father of the Common School Movement.[3]