What is the difference between interpersonal attraction and cohesion?

1. What is the difference between interpersonal attraction and cohesion? (chapter 5) 2. Why do groups and the members of groups change their opinions over time? (chapter 7) 3. If you were a teacher, how would you structure your classroom’s goals to maximize cooperation and minimize competition? (chapter 13) 4. Use the concept of ambience to describe your affective reaction to a classroom and describe how the features of the physical environment influence classroom dynamics. (chapter 15)