"In an American school if you ask for the salt in good French, you get an A. In France you get the salt." - B.F Skinner
This is a quote from B.F. Skinner and is a great example of Natural Environment Teaching (NET)(http://www.networkinterventions.com/about/what-is-net) versus Intensive Teaching Trials (ITT).
When we are teaching in NET, we are working to an individuals motivation. By saying, "In France you get the salt" it is highlighting manding (requesting) in which what you ask for is exactly what you get. I want the salt - I ask for the salt - I am given the salt.
As you can imagine, this is a highly effective way to teach people the value of language and how it is very quick to improve your world.
When we are teaching in ITT, we are working on skills that are not related to motivation and the individual is reinforced (rewarded) with an item that is unrelated to the task. By saying, "In an American school if you ask for the salt in good French, you get an A" it is highlighting this fact. Saying, "Salt" and getting an A are not related at all. Therefore, the individual may learn that saying salt in french obtains an A, but when they are in France and really want salt they may not be able to ask for it.
This is why, when we start teaching and throughout programming, we focus on teaching in NET and teaching our learners the value of language and how it improves their world.