From Wikigogy

Expedition to discover card based lessons

[edit] Cards of all kinds

Playing cards, Discussion cards, blank 3x5 cards, colored cards... any card...

[edit] Quick debate

Students pick slips of paper out of your hat. Each has a noun on it — bicycle, refrigerator, etc. Pairs of students draw one item each and have to debate which is more important.

• Quick debate

[edit] Discussion card

These are okay for 15 minutes or so with students who have a sufficient level of English already with which to engage each other in discussion started by the cards.

• Discussion card here's a start. Please add more question ideas...