Labor Unions： 1. Definition: an organized association of workers，usually in a similar trade or profession，formed to protect and further their rights and interests as workers.
2. Why do workers often form unions？What benefits can workers gain from them？
3. How do we see this in the episode of The Simpsons？

How has immigration influence the food choices in many countries?

Which of these is the best example of a cause-and-effect chain of events? 1. alonzo went to the music festival. 2. carmen went to the same music festival. 3. alonzo met carmen at the music festival. 1. yosef bought a new car from a dealership. 2. bailey bought a car from the same dealership. 3. bailey paid more for his car than yosef did. 1. the high school football team played a game on friday night. 2. the drama club put on a play on friday night. 3. maya watched the football game instead of the play. 1. a fast food restaurant ran an advertisement on television. 2. hank saw the advertisement and got hungry. 3. hank went to the fast food restaurant and bought food.

Identify a strategy for improving self-perception and the perception of others.