This is a simple game that will have your students dying to tell you the answer.

How to play: Gather several (around 6 works well) objects, possibly flashcards. If you want you can teach the question "What is missing?" or "What is in my pocket?". Place the objects/flashcards where the students can't see them. Have one student choose an object and put it in their pocket (or just hide it if it doesn't fit in their pocket). Display the objects and have the student say "What is in my pocket?". The students now guess what is in the student's pocket.

Enjoy!