[FionaVB]

The language school in Viet Nam where I am employed has a VNese national English teacher in every class up to high school level, and both a NS and the VNese teacher in half of those classes. (Each class has two sessions a week.) At high school level, the NS teachers are on their own for their class. In a co-teaching situation, the VNese co-teacher usually sits down the back and only says anything if called upon, for example if the meaning of a word is just not getting through with mime or examples, or if an activity needs a complicated explanation, or if two people are needed to model something. The co-teacher only gets paid half their normal rate for these classes, so I'm quite happy for them just to sit and do their marking or whatever. They do often like to get a copy of any crossword or wordsearch that I make for the class! I like this system very much, as you have a fallback if you're completely stumped.