Vocational courses and classes are offered by a number of institutions. Many high schools offer basic vocational education, such as home economics, woodshop, and auto repair. Vocational educational institutions vary by state, but most postsecondary vocational instruction is offered by private career schools.
Sigmund Freud of Vienna, who is considered as the father of modern psychology, originated a new method called the Free Association Technique. Freud considered that mind has three parts  the conscious, the pre-conscious and the unconscious. He considered that 90% of the mind is the unconscious mind.
Video: Differences between Piaget & Vygotsky's Cognitive Development Theories. 1  Two of the most recognized cognitive psychologists, Jean Piaget and Lev Vygotsky, developed theories that addressed cognitive development and learning among children and adolescents. While there are similarities between the two theories, differences exist, and those differences are critical to the understanding and application of the theories in educational settings.