The document is a journal submission from a student named Teo Chong Yih for a social psychology class. It contains summaries of three class sessions: 1) An introductory class where students answered questions about themselves and were introduced to psychology. 2) A class about self-concept where students defined themselves and learned about self-serving bias and predicting feelings. 3) A class about vision where students learned about the structure of the eye, effects of color, and visual illusions.