For Jigsaw as a collaborative/cooperative instructional strategy, each student of a "home" group will specialise in one aspect of a topic. Students who are assigned the same aspect will form “experts” groups. In their “experts” groups, students will acquire knowledge and master the material, after which they return to the "home" group, teach the material to their group members and together work towards achieving the “home” groups’ goals.
With this strategy, each student in the "home" group represents a piece of the topic's puzzle and when they work together as a whole, they create the complete jigsaw puzzle.
Jigsaw is helpful in motivating students to accept responsibility for learning something well enough to teach it to their peers. It also gives each student a chance to be in the spotlight. When students assume the role of teacher, they lead the discussion, so even students who are reticent to speak in class must take on leadership roles.