There are some tipes of exchange and one of them is High School. It is an exchange realized between fourteen and eighteen years old. Doing this, the student have the oportunity to attend part of his high school in another country. The student stays in a housee from some family and this 'living together' it's a very interessant point, because it takes maturation for the two parts, the student and the hostfamily.
Another kind of exchange is when a college student stop studying by sometime and travell abroad to do part of his course in the country chosen. In this exchange the student have to stay in his own college, and he can work too.
The most comum countries chosen by the students and that better receive then are U.S.A. , Canada, South Afrika, Australia and some European countries. They are often searched because of the english language. Another good point is that these countries are rich and have good conditions to live and study.
The exchange student must be open to know new people, new habbits and a a new culture! And he often need to work hard to learn the new language!
that's all ! kisses!