If the material to be taught has key terms and definitions to learn, produce a sheet of card that has the key terms and a definition for each one. Cut up the cards into key terms and definitions and shuffle them. Give each pair of students one full set of cards and their task is to match up the key term with the appropriate definition. They could record their definitions for their notes once you have checked that their matching is correct.
Tags: definitions, key terms, matching cards
One possible modification is to give students either a key word or definition and get them to mingle until they find their matching pair.
Add some Red Herrings with close but not quite right answers to stretch them!
Thanks for this suggestion Stef. It sounds like a great way to make the students more active and get them moving around the room.