countertrade

"Wampum was used as a currency by Amerindians."

"The foreign student in my class has a different cultural background than the rest of us. "

"During harvest season, many tractors work in the fields, pulling heavy trailers full of crops. "

"The students were exchanging stickers during recess. "

"The new school management software allows teachers to easily track student progress. "

"There is not sufficient access to the internet in many small rural villages."

"All in all, it was an even exchange."

"The school's student council is a company of dedicated students who organize events. "

"I say I did him a service by ending our relationship – now he can freely pursue his career."

"The school is advertising a new after-school program for students. "

"There is one sterling and here is another"

"All in all, it was an even exchange."