Justin Sung's Learning Techniques — Higher-Order Learning¶
Audience: High school students (Years 9–13)
Purpose: Summarise the core learning techniques taught by Dr Justin Sung (iCanStudy), explain the science behind them, and provide practical steps you can try immediately.
Source: Dr Justin Sung's publicly available YouTube content, the iCanStudy programme curriculum, and the HUDLE™ framework. This is a summary — not a substitute for his full course.
Who Is Justin Sung?¶
Dr Justin Sung is a medical doctor turned learning coach. He founded iCanStudy, an evidence-based learning programme used by over 30,000 students and professionals worldwide. His approach is rooted in cognitive science — specifically levels of processing theory, cognitive load management, and self-regulated learning.
His central argument:
Most students use low-order study methods (re-reading, copying, highlighting) that feel productive but create shallow memory traces. Higher-order methods — grouping, relating, restructuring — require more effort but produce deeper, longer-lasting understanding.
The Core Problem: Low-Order vs Higher-Order Learning¶
Justin Sung divides study techniques into a spectrum from low-order to higher-order processing:
| Level | What it looks like | Memory strength |
|---|---|---|
| Low-order | Re-reading, copying notes, highlighting, passive flashcards | Weak — forgotten quickly |
| Mid-order | Summarising, basic mind maps, paraphrasing | Moderate — requires lots of repetition |
| Higher-order | Grouping, finding relationships, restructuring, applying to new contexts | Strong — retained long-term with less repetition |
The key insight: the way you process information during study determines how well you remember and use it later. Spending 3 hours on low-order study can be less effective than 45 minutes of higher-order encoding.
flowchart TD
A[Information encountered] --> B{How do you process it?}
B -->|Re-read / copy / highlight| C[Low-Order Encoding]
B -->|Summarise / paraphrase| D[Mid-Order Encoding]
B -->|Group / relate / restructure| E[Higher-Order Encoding]
C --> F[Weak memory trace — needs constant repetition]
D --> G[Moderate trace — needs regular repetition]
E --> H[Strong trace — retained longer, more flexible]
The Study Session Framework¶
Justin Sung structures a study session into distinct phases. Each phase has a specific cognitive purpose.
1. Priming¶
Before reading or studying a topic in depth, scan it first. Don't try to learn — just get familiar.
What to do: - Scan headings, subheadings, diagrams, and bold terms - Read the first and last sentence of each section - Look at any questions or exercises at the end - Note keywords — don't write sentences
Why it works:
Priming reduces cognitive load. When you encounter the material a second time, your brain already has a rough scaffold — so it can focus on understanding instead of orienting.
Watch: Spend 1 Hour Studying to Save 20 Hrs Later (Priming)
flowchart LR
A[Scan headings and structure] --> B[Note keywords — no sentences]
B --> C[Look at end-of-chapter questions]
C --> D[Brain builds a rough scaffold]
D --> E[Deep reading becomes easier]
2. Encoding (Deep Processing)¶
This is the core of Justin Sung's method. Encoding is the process of actively building meaning from what you read — not just recording it.
There are several encoding techniques he teaches, in rough order of increasing power:
a) Grouping¶
Take a list of facts or ideas and organise them into categories. Don't just copy them in the order the textbook presents them — restructure them in a way that makes sense to you.
| Type | Example |
|---|---|
| Ordered grouping | Steps in a process arranged chronologically |
| Unordered grouping | Related concepts clustered by theme (e.g., "things that affect X") |
| Hierarchical grouping | Big ideas at the top, details nested underneath |
b) Relating (Finding Connections)¶
Go beyond grouping — actively ask: - How does this idea connect to that idea? - What is the cause and what is the effect? - How is this similar to or different from something I already know? - What would happen if this changed?
c) Simplifying¶
Take a complex idea and reduce it to its essential principle. If you can explain it simply, you understand it deeply.
d) Restructuring¶
Rearrange the material into a layout that matches how your brain connects the ideas — not how the textbook ordered them. This is where non-linear notes come in.
Watch: How To Encode Information Like A Genius (12 Rules)
flowchart TD
A[Read a section of content] --> B[Grouping: Organise into categories]
B --> C[Relating: Find connections, causes, contrasts]
C --> D[Simplifying: Reduce to core principles]
D --> E[Restructuring: Rearrange into your own layout]
E --> F[Strong encoded memory — flexible and connected]
3. Non-Linear Note-Taking¶
This is one of Justin Sung's most distinctive recommendations. Instead of writing notes top-to-bottom in lines, use a spatial, non-linear layout — similar to mind maps but with more emphasis on relationships.
Linear vs Non-Linear Notes¶
| Linear notes | Non-linear notes |
|---|---|
| Written top to bottom, left to right | Spread across the page spatially |
| Follow the textbook's order | Follow your understanding's order |
| Easy to write, hard to review | Harder to write, much faster to review |
| Show sequence | Show relationships |
How to take non-linear notes¶
- Start with a central concept in the middle of the page (or screen)
- Branch out to related ideas — not in the order they appeared, but grouped by meaning
- Draw connections between branches (arrows, lines, labels)
- Use short keywords, not full sentences
- Reorganise as you learn more — move things, redraw connections
- Use an infinite canvas tool (e.g., Concepts app, Excalidraw, Miro, or large paper)
Watch: Upgrade Your Note-Taking the Easy Way (Flow-Based Notes)
flowchart TD
A[Central concept in the middle] --> B[Branch 1: Sub-topic A]
A --> C[Branch 2: Sub-topic B]
A --> D[Branch 3: Sub-topic C]
B --> E[Detail / Example]
C --> F[Detail / Example]
B <-->|relationship| C
D --> G[Detail / Example]
C <-->|contrast| D
Key principle: The act of deciding where to place an idea on the page is itself a form of encoding. It forces you to think about how ideas relate — which is the whole point.
4. Retrieval (Active Recall)¶
After encoding, close your materials and try to rebuild what you learned from memory.
What to do: - Close the textbook or notes - On a blank page, draw out the non-linear map from memory - Fill in as much as you can - Open your notes and check what you missed - Focus extra attention on the gaps
flowchart TD
A[Close all materials] --> B[Rebuild your non-linear map from memory]
B --> C[Fill in everything you can recall]
C --> D[Open notes — compare and find gaps]
D --> E{Gaps found?}
E -- Yes --> F[Re-encode the missing parts]
F --> A
E -- No --> G[Move to next topic or interleave]
This is more effective than re-reading because retrieval strengthens memory traces — the effort of pulling information out of your head is what makes it stick.
5. Interleaving¶
Instead of studying one topic exhaustively before moving to the next, alternate between topics within a session.
| Blocked practice | Interleaved practice |
|---|---|
| Topic A → Topic A → Topic A → Topic B | Topic A → Topic B → Topic A → Topic C |
| Feels easier | Feels harder |
| Creates illusion of mastery | Creates actual flexible knowledge |
Why it works:
Interleaving forces your brain to discriminate between topics — "Is this a Topic A situation or a Topic B situation?" — which is exactly what assessments require.
flowchart LR
A[Study Topic A] --> B[Switch to Topic B]
B --> C[Return to Topic A]
C --> D[Switch to Topic C]
D --> E[Brain learns to discriminate between topics]
E --> F[Flexible, assessment-ready knowledge]
The Full Study Session — Putting It All Together¶
A complete study session using Justin Sung's techniques follows this flow:
flowchart TD
A[1. PRIME: Scan the material — headings, keywords, questions] --> B[2. ENCODE: Read deeply — group, relate, simplify, restructure]
B --> C[3. NOTE: Create non-linear notes showing relationships]
C --> D[4. RETRIEVE: Close notes, rebuild from memory]
D --> E[5. CHECK: Open notes, identify and re-encode gaps]
E --> F{More topics this session?}
F -- Yes --> G[6. INTERLEAVE: Switch to a different topic]
G --> A
F -- No --> H[7. REFLECT: What went well? What was hard? Adjust for next session]
The Learning Debt Concept¶
Justin Sung warns against learning debt — the accumulation of poorly encoded material that you plan to "revise later."
| Concept | Meaning |
|---|---|
| Learning debt | Material you studied but didn't encode well — requires future rework |
| No debt | Material encoded deeply the first time — only needs light retrieval to maintain |
Every hour you spend on low-order study creates debt — you'll need to spend more hours later to compensate. Higher-order encoding upfront eliminates most of that debt.
flowchart TD
A[Study session] --> B{Encoding quality?}
B -->|Low-order: re-read, copy| C[Learning Debt Created]
C --> D[Must re-study before exam]
D --> E[More time, more stress]
B -->|Higher-order: group, relate, restructure| F[No Debt]
F --> G[Light retrieval maintains knowledge]
G --> H[Less time, less stress]
The HUDLE™ Framework¶
Justin Sung's iCanStudy programme is built on the HUDLE™ framework — a model for training learning skills systematically:
| Letter | Component | Meaning |
|---|---|---|
| H | Higher-order learning | Processing information at a deep, connected level |
| U | Unconventional methods | Moving beyond mainstream study advice (re-reading, highlighting) |
| D | Deliberate practice | Treating learning itself as a skill you train intentionally |
| L | Lifelong application | Skills that transfer across subjects, careers, and life stages |
| E | Evidence-based | Grounded in cognitive science and learning psychology |
The Self-Management Layer¶
Justin Sung emphasises that technique alone is not enough. You also need to manage:
- Focus and attention — building the ability to sustain deep work
- Metacognition — thinking about how you're thinking ("Am I actually encoding, or just reading?")
- Reflection — reviewing your study process after each session, not just the content
- Emotional regulation — handling frustration, boredom, and overwhelm without defaulting to low-order coping strategies
flowchart TD
A[Study Session] --> B[Technique Layer: Priming → Encoding → Retrieval]
A --> C[Self-Management Layer]
C --> D[Focus: Can I sustain attention?]
C --> E[Metacognition: Am I actually learning right now?]
C --> F[Reflection: What should I change next session?]
C --> G[Emotional Regulation: Can I handle this being hard?]
B --> H[Effective Learning]
D --> H
E --> H
F --> H
G --> H
Common Misconceptions¶
| Misconception | Reality |
|---|---|
| "More hours = better grades" | Quality of processing matters more than time spent |
| "I need to memorise everything" | Focus on understanding relationships — details attach to strong frameworks |
| "Mind maps are just pretty notes" | A mind map only works if it forces you to think about structure and connections — decorating is irrelevant |
| "Flashcards are the best tool" | Flashcards are useful for low-order details (dates, vocab) but poor for higher-order understanding |
| "I should study one subject for hours" | Interleaving is harder but produces more flexible knowledge |
| "This method should feel easy" | Higher-order encoding feels harder — that's the signal it's working |
Practical Quick Start — Try This Week¶
If you want to experiment with Justin Sung's approach, start with one subject and one session:
- Pick a topic you find difficult
- Spend 5 minutes priming (scanning)
- Read one section, stop, and ask "How does this relate to X?"
- Draw a non-linear map of that section without looking
- Check your gaps and fix them
End of Justin Sung's Learning Techniques