1. The lesson plan discusses teaching a class about how birth order can impact personality and relationships by having students read a text, watch a video, and answer comprehension questions.
2. The reading text discusses a sociologist's theory that firstborns are more likely to accept their parents' values while later-borns may rebel, and that birth order can indicate relationship compatibility, like a firstborn husband and later-born wife.
3. The psychologist also claims firstborns tend to be perfectionists from parental pressure, middle children may find talents where firstborns lack, and lastborns have more freedom and are more creative.