Concentric-Circle Learning Design
Teach the essential lesson first, then let learners opt into depth
- Difficulty
- Moderate
- Time to result
- ~weeks to results
- Steps
- 5
- Confidence
- 97%
The concentric-circle model begins by compressing a full lecture into the shortest lesson that still communicates its substantive idea. That core becomes the center circle and gives time-constrained learners a realistic path to completion. Surrounding circles add examples, stories, applications, technical detail, exercises, and full-length instruction. Learners can stop after acquiring the essential concept or move outward when interest and time permit. The mechanism differs from merely shortening a course: it deliberately separates substance from enrichment and preserves links between them. Completion data can reveal where commitment collapses, while the layered design lets serious learners pursue depth without forcing every participant through the same workload.
Origin
Extracted from Masters in Business, where Damodaran describes redesigning eighty-minute valuation lectures after observing steep attrition in his free online classes.
Core principles
- 01Deliver the substance before the dressing.
- 02Design for the time learners realistically possess.
- 03Depth should be available without being mandatory.
- 04Short lessons can become gateways to richer material.
- 05Flexible paths improve completion without eliminating rigor.
How to run it
- 1
Define the core outcome
Specify the one idea or capability learners must retain from the full lesson.
Pro tip Write the outcome as something learners should understand or do, not as content to cover.
Watch out Do not call every detail essential.
- 2
Compress the lesson
Create a brief version that communicates the mechanism without extended stories or examples.
Pro tip Use the constraint of a ten-minute delivery to expose unnecessary buffer.
Watch out Compression should remove dressing, not the logic required for understanding.
- 3
Build enrichment rings
Add optional examples, applications, exercises, and full lectures around the core module.
Pro tip Label the purpose and estimated time of each layer.
Watch out Avoid dumping an unstructured resource list on learners.
- 4
Offer explicit pathways
Tell learners what to do if they have only a little time, want practical application, or seek full mastery.
Pro tip Let interest in the core lesson pull learners toward the next circle.
Watch out Do not imply that the shortest path provides the same depth as sustained study.
- 5
Measure and refine
Track where learners stop and improve the transitions, workload, or relevance of weak layers.
Pro tip Evaluate both completion and demonstrated understanding.
Watch out High completion alone does not prove that learning occurred.
In the wild
After seeing most of roughly fifty thousand online starters disappear before the twenty-sixth session, Damodaran reframed each eighty-minute lecture as a ten-minute core lesson. He then connected the concise material to longer lectures, examples, blog posts, and applications for learners who wanted more depth.
→ Learners receive a realistic entry point while retaining access to the full body of instruction.
A company replaces a mandatory two-hour workshop with a twelve-minute decision model. Managers can then choose a case walkthrough, a practice exercise, or the original deep seminar. Each layer states its purpose and time requirement.
→ Busy managers learn the core method while motivated participants can still develop deeper competence.
Common mistakes
Mistaking shorter for simpler
A concise lesson should preserve the causal logic, not reduce the topic to slogans.
Hiding the next layer
Learners need clear links and expectations if they are to move from the core into deeper material.
Forcing every learner outward
The model loses its flexibility when all enrichment rings quietly become mandatory.
Is it for you?
Best for
Teachers, trainers, and creators serving learners with widely varying time and motivation.
Not ideal for
Skills where supervised practice, physical safety, or tightly sequenced mastery makes optional depth inappropriate.
From the transcript
“So that's why I created an online version of my class where I take my eighty minute lecture and I think about how would I…”
“I'm saying that ten minutes is where you get the substance the extra eighty minutes or where you get the dressing on the substance”
“So I create these con centric circles for people who have time, and if you have this much time, try these extra things. This much…”
From the episode
Aswath Damodaran on the Future of Business Education
Aswath Damodaran