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
1918-1959, worked at Uni. of California. His stay at Uni. of California was interrupted, when he was dismissed for refusing to sign a loyalty oath. He led a fight against the loyalty oath as an infringement (违反,侵害) on academic freedom and was