Development refers to the ways people grow, adapt, and change during their lifetimes. physical development, personality development, socioemotional development, cognitive development(thinking), and language development
The foundation of E.P.: before 1920s Wundt,1879: methodology James, “Talks to the teachers” 1899; “The principles of psychology”1890; Dewey: apply psychology to education
1915-1918, taught at Northwestern Uni., At which time he was released for “lack of teaching success”, but more likely it was because of his pacifism during wartime