He or she says good morning or good afternoon or something like that and you all, as a class,you answer.

VOA: special.2009.11.05

"I can say that,anecdotally, virtually all the teachers noticed immediately much more alertness in class, definitely more positive mood.

VOA: special.2010.10.07

He would try to explain it this way when students asked for a top grade just for studying hard in chemistry class: What if a baseball player came to spring training and worked harder than all the others, but still could not play well.

VOA: special.2009.03.12

Senator Amy Klobuchar, a Michigan Democrat, said Americans at all levels but notably the middle class continue to struggle.

VOA: standard.2009.12.05