The document defines social class as the way society is divided into lower, middle, and upper classes based on factors like occupation, education, income, and mannerisms. It then provides stereotypes and examples for each class. The working class is divided into skilled and unskilled, and stereotypes include poor manners and hygiene. The middle class is divided into lower and upper, and stereotypes include being well-educated and owning homes. The upper class is considered the elite due to inherited wealth and education, and stereotypes portray them as posh and superior.