Jigsaw, step by step: how to run a jigsaw lesson
The short answer: in a jigsaw, you split a topic into three to five parts. Each student becomes the expert on one part, working with the other students who have the same part (the expert group). Then they return to a home group that contains one expert from every part, and teach it. Every student's part is needed, so everyone has something real to contribute. A first jigsaw takes 35 to 45 minutes.
When jigsaw fits
| It fits when | It is a poor choice when |
|---|---|
| The content splits into parts that can be learned independently | Part 2 only makes sense after Part 1 |
| Parts are of similar length and difficulty | One part is far harder than the others |
| Students can read or study a part without you | The material needs your explanation first |
| You want students to depend on each other | You need to be sure every student learns every detail |
Typical uses: four causes of an event, five organ systems, three poems on one theme, four methods for solving a problem, the viewpoints in a debate.
Step by step (a 45-minute lesson with four parts)
| Step | Time | What happens |
|---|---|---|
| 1. Introduce | 3 min | Explain the plan and the one question the whole class answers at the end. Students sit in home groups of four and each takes a part (A, B, C or D). |
| 2. Expert groups | 12 to 15 min | All the As meet, all the Bs, and so on. They study their part with guiding questions, agree on the key points, and plan how to teach it in three minutes. You circulate and check that they have it right. |
| 3. Home groups | 12 to 15 min | Back in home groups, each expert teaches in turn (about three minutes each). The others take notes and ask questions. |
| 4. Check | 5 to 8 min | Each student answers a short quiz or exit ticket on all the parts, on their own. |
| 5. Debrief | 3 min | One question to the class: what connected the parts? What was hard to teach? |
Preparing the parts
- Make the parts equal. If one part is much longer, its expert will be under pressure and the home group will hear a rushed explanation.
- Write an expert sheet for each part, with three or four guiding questions. "Read and be ready to teach" is too open; the questions tell students what teaching it means.
- Plan for odd numbers. If the class does not divide evenly, one or two home groups will have a spare. The spare can double up on a part, so two students become experts on the same piece and can check each other.
- Plan for absence. If an expert is away, their part is missing from a home group. Give the notes to a student in that group, or have a second expert in some groups.
Making it work
- Mix the groups on purpose. Expert groups and home groups should include different strengths and different friends. Random, with a rule to keep certain pairs apart, is often enough.
- Assess individually. Without a quiz, jigsaw turns into "listen politely". An individual check on all parts keeps every student responsible for learning from the others.
- Check the experts. The main risk is students teaching something wrong. Visiting each expert group in step 2 lets you correct before it is passed on.
- Teach students how to teach. Show one example: say the idea, give an example, ask a check question. Students who have only been taught to receive explanations need this.
What the research says, honestly
Jigsaw was created by Elliot Aronson and his graduate students in Austin, Texas in 1971. The city's schools had recently been desegregated, and the competitive classroom was fuelling hostility between groups. The team designed a structure in which small mixed groups each held a piece of the material and needed each other to learn it. It was later written up in The Jigsaw Classroom (1978), and Robert Slavin adapted it as "Jigsaw II", which adds individual quizzes and team scores.
Evidence for its effect on learning is positive but uneven. A 2023 systematic review and meta-analysis of 69 studies found, on average, a positive effect on achievement (a pooled effect of about 0.77 standard deviations across 43 studies), but with very large differences from study to study. Smaller studies reported larger effects than bigger ones, which is a common warning sign. For motivation, social relations and self-esteem, the pooled results were not statistically distinguishable from zero. The authors recommend cautious interpretation. In short: jigsaw is a well-founded method that often helps, but do not expect it to work automatically. How well you prepare the parts and check the learning matters.
Common problems
| Problem | Fix |
|---|---|
| An expert is unsure of their part | Shorter, clearer expert sheet; let experts compare notes before leaving the expert group |
| A student teaches too fast or too slowly | Set a three-minute turn with a visible timer |
| Home group members do not listen | Require notes, and tell them the quiz covers all parts |
| One part is much harder | Put a stronger reader in that expert group, or split it into two parts |
| Some groups finish early | A synthesis task: "Which part connects most to which?" |
| Students are absent | Back-up experts or a spare set of notes |
Try it with ClassMixer
Choose Jigsaw in ClassMixer. It is part of the paid pass. You choose how many parts (topics) there are, and it forms the expert groups, then the home groups, with one expert from each part wherever the numbers allow. A class that does not divide evenly gets a spare who doubles up on a part. The projector shows each step and its timer, and the groups for both rounds are saved in your recent activities. The free version includes think-pair-share and discussion groups if you want a lighter structure first.
References
- Aronson, E., Blaney, N., Stephan, C., Sikes, J., & Snapp, M. (1978). The Jigsaw Classroom. Sage.
- Aronson, E. The Jigsaw Classroom: history. jigsaw.org/history
- Cochon Drouet, O., Lentillon-Kaestner, V., & Margas, N. (2023). Effects of the Jigsaw method on student educational outcomes: systematic review and meta-analyses. Frontiers in Psychology, 14, 1216437. doi.org/10.3389/fpsyg.2023.1216437
- Slavin, R. E. (1995). Cooperative Learning: Theory, Research, and Practice (2nd ed.). Allyn & Bacon.
- Kyndt, E., Raes, E., Lismont, B., Timmers, F., Cascallar, E., & Dochy, F. (2013). A meta-analysis of the effects of face-to-face cooperative learning. Educational Research Review, 10, 133–149.