Well, most of my classes involve 4-5 games or activities. And in an open class you usually want to exhibit your 'best' stuff. If it were me, I would:
1. 3 min, Start class - What's today's date? How's the weather?
2. 5 min, Motivation - Interesting video or PPT on unique homes in the world (or a small clip of MTV cribs or something hilarious like a clip of the movie Home Alone)
3. 5 min, Video guessing game - Use the Simpson's 3D tour (located on the other thread for this lesson). Hit pause for each room and ask "what room is this" and "What's this?" --an oven, a refrigerator, a sofa..etc
4. 7 min, Racing game - Two or more students (however your class is set up) run through the rows doing a dialogue -- "Where's Jinho? -- In the bedroom!" As the students answer they sit down, and the fastest team wins.
5. 10 min, Virus game - The students each get a card. They have to go through this dialogue to fill out the card "What are you doing? -- I'm reading. -- Where? -- In the living room." They'll ask 3 to 5 people, depending on how long you want the game to be. You secretly walk around and choose 2 students as the virus. You call out their 'sentence' and whoever has those students (viruses) on their card loses.
6. 3 min, Song - Any song.
7. 2 min, Exit password - Have the students say a key phrase as they exit.
And you would still have time left over for a quick PPT on maybe a tour of your house in whatever country you're from.
Hope this helps and good luck with your open class.
