The document summarizes four reaction papers written by a student for an architecture course. The first paper discusses Kenneth Frampton's ideas about relating a building's form to the natural context and resisting placelessness. The second paper compares ideology and theory in architecture and discusses how semiotics can help develop theories. The third paper emphasizes that architecture should evoke emotions through experience rather than just visual form. The fourth paper summarizes Jane Jacobs's work on failures of city planning and new principles for rebuilding cities.