This lesson focuses on intonation. Start by showing them a few videos of robots
http://www.youtube.com/watch?v=Q3C5sc8b3xM (they find this one funny - robot running)
http://www.youtube.com/watch?v=hcIlTKoDPGI (dancing robot animation)
Get some rhytmic chanting going by scrolling through the attached pics one by one on the screen.
Teacher: "Answer the door!"
Students: "Answer the door!"
I've included a list of all the commands in the doc file. They all "fit" quite nicely into a rhythmic groove. So you can drill them without stopping.
Explain intonation, how it makes you sound like a human, not a robot. Then get them in groups and give each group a copy of the pictures, practicing from memory. To motivate them, you can say 10 minutes of memorizing, then a quick flashcard quiz - group with the most right answers wins.
I also got some tinfoil and gave each group about 3ft of it to make a robot out of one of the students. I teach 24 classes a week, and the total cost was 10,000 won for the week, so it's worth it. This is hilarious. Phones will emerge.
If they're above basic commands, you can extend the language to "I am answering the door" or "I answered the door" etc.
Fuzzies,
John