How to Study When You Don't Understand the Material

There's a specific kind of panic that hits when you're staring at your notes and nothing makes sense. You've read the same paragraph four times. You watched the lecture twice. You highlighted everything. And you still don't get it.

Here's the hard truth: when you don't understand the material, studying more of it in the same way will not help. Comprehension problems aren't fixed by effort — they're fixed by strategy.

This guide is for students who are genuinely stuck — whether it's a single confusing concept, a week of missed lectures, or an entire subject that never clicked. You'll learn how to diagnose why you're confused, what to do about it, and how to use the right tools to finally understand the material — not just memorize it.

🎯 Key Takeaways

• Confusion usually has 3 causes: missing prerequisites, wrong resource, or wrong study method
• Before studying more, identify the exact concept you don't understand
• Switching resources — not re-reading the same textbook — is often the fastest fix
• The "explain it simply" test is the most reliable way to confirm real understanding
• AI study tools like Snitchnotes can target the exact concepts you're confused about
• Office hours are the most underused resource in college — use them

Why Studying More Won't Fix Confusion

Most students respond to confusion the same way: they go back to the beginning and read everything again. They re-highlight their textbook. They rewatch the lecture. They spend three hours "studying" and come out of it still confused — but now also exhausted.

This happens because rereading and rewatching are passive activities. Research published in Psychological Science in the Public Interest in 2013 found that rereading is one of the least effective study strategies, producing minimal gains in comprehension or retention compared to active methods like retrieval practice.

Confusion requires a different response than forgetting. Forgetting means you understood something and it faded — spaced repetition fixes that. Confusion means you never built the right mental model in the first place. No amount of repetition will fix a broken foundation. The solution isn't more time with the same material. It's a different approach entirely.

The 3 Real Reasons You Don't Understand the Material

Before you can fix confusion, you need to know why it's happening. Most comprehension failures fall into one of three categories.

1. Prerequisite Knowledge Gaps

Every subject builds on prior concepts. If you're confused by organic chemistry mechanisms, it's often because you don't have a solid grip on electronegativity from general chemistry. If calculus feels incomprehensible, the gap might be in precalculus or algebra. Researchers call this "missing schema" — you're trying to connect new information to a mental framework that doesn't exist yet.

How to spot it: You understand the words individually, but the relationships between concepts don't make sense. You can repeat the definition but can't apply it.

2. The Resource Isn't Right for You

Some textbooks are famously poor at explaining concepts. Some professors teach in a way that clicks for 60% of the class and leaves the rest behind. A 2020 report by the National Survey of Student Engagement found that 42% of students reported their main course materials were confusing or poorly written. If you've been using only one resource, the fix might be as simple as finding a better explanation elsewhere.

How to spot it: Other students seem to be doing fine with the same material. Or you've always struggled with one professor's teaching style but done well with the same subject in a different course.

3. You're Using the Wrong Study Method

Some subjects require working through problems — not reading — to build understanding. Trying to understand circuit analysis by reading about it is like trying to learn swimming from a book. Visual learners attempting to understand systems from dense text, or big-picture thinkers trying to master fine details one by one, hit this wall constantly.

How to spot it: You feel like you "almost" get it while reading, but the understanding disappears the moment you close the book.

Step-by-Step: What to Do When You're Stuck

Step 1: Identify Exactly What You Don't Understand

"I don't understand this chapter" is too vague to fix. "I don't understand why enzymes have different activation energies" is specific enough to work with. Get a blank sheet of paper and write down the most specific version of your confusion — not the topic, but the exact concept, relationship, or mechanism that's unclear. This exercise alone often reveals more than an hour of rereading.

Step 2: Check for Prerequisite Gaps

Take your specific confusion and ask: "What do I need to already know to understand this?" For example:

• Confused by differentiation? → Do you understand limits?
• Confused by supply/demand shifts? → Do you understand market equilibrium?
• Confused by protein synthesis? → Do you understand DNA transcription?

If you find a prerequisite gap, spend 20–30 minutes filling it first. Khan Academy and YouTube are excellent for this. Patching the foundation is almost always faster than trying to brute-force the concept above it.

Step 3: Switch Resources

If you've confirmed you have the prerequisites but still don't understand, the resource is the problem — not you. Try at least two of these alternatives:

• YouTube: 3Blue1Brown (math/physics), Khan Academy, CrashCourse, and subject-specific channels explain concepts visually and at multiple levels
• Different textbooks: Your university library often has 5–10 different books on the same subject — find one with more worked examples
• Open courseware: MIT OpenCourseWare, Coursera, and edX offer full course materials that often explain the same concepts with more clarity
• Reddit communities: r/learnmath, r/chemhelp, r/AskHistorians, and dozens of subject-specific subreddits have experts who answer student questions

The goal is to find the explanation that clicks with how you think — not to find the "right" resource.

Step 4: Break the Concept Into Smaller Pieces

If a concept feels like one big wall of confusion, you're probably trying to understand too many things at once. Decompose it into the smallest possible questions. For example, if you don't understand how photosynthesis works:

1. What is glucose and why do plants need it?
2. What is ATP and where does it come from?
3. What happens to light when it hits a chlorophyll molecule?
4. What is the light-dependent reaction?
5. What is the Calvin cycle?

Each of these is now a separate, answerable question. Work through them in order. The confusion is rarely the whole concept — it's usually one specific link in the chain.

Step 5: Explain It Out Loud in Plain Language

This is the single most reliable test of whether you actually understand something. Close your books, open a blank document, and explain the concept as if you're teaching someone with no background in the subject. When you do this:

• If you understand, the explanation comes out clearly and simply
• If you don't understand, your explanation hits a specific wall — and that's exactly where your gap is

This draws on the same principle as the Feynman Technique. Research on the "explanation effect" shows that explaining material — even to yourself — significantly improves comprehension compared to passive rereading.

Step 6: Test Yourself on the Confused Concept Specifically

Once you think you understand it, don't move on without testing yourself. The "I get it now" feeling while reading is notoriously unreliable — researchers call this the fluency illusion, and studies from Yale University found that students who feel confident they understand material perform no better on tests than students who know they're uncertain.

Take practice problems or AI-generated quizzes specifically on the concept you just worked through. If you can answer questions without looking at your notes, you understand it. If you can't, return to Step 4.

How AI Can Help When You're Stuck

AI study tools have changed what's possible when you're stuck on a concept. Traditional flashcard apps can't adapt to your specific confusion — but AI can.

With a tool like Snitchnotes, you can:

• Upload your notes or lecture slides and immediately generate quizzes on specific confusing concepts
• Ask the AI to explain a concept in simpler terms or with a different analogy
• Identify which topics you keep getting wrong, so you know exactly where your gaps are
• Drill the exact confused concept repeatedly until it actually sticks

Instead of reviewing 50 pages of notes and hoping the confusing part clicks, you isolate the exact mechanism you're struggling with and work on it directly. This is especially valuable for subjects like biochemistry, organic chemistry, or physics where one misunderstood concept blocks everything downstream.

When to Ask a Human for Help

Some confusion genuinely requires a human explanation. The research on tutoring is clear: a landmark 1984 study by educational psychologist Benjamin Bloom found that students who received one-on-one tutoring performed 2 standard deviations above students in conventional classroom settings — the difference between the 50th and 98th percentile.

Go to office hours or seek a tutor when:

• You've tried 2–3 different resources and still don't understand
• The concept is foundational to a major exam that's coming up
• You've been stuck for more than 2–3 hours on the same concept
• Other students in your class also seem confused — it may be worth raising with the professor

Office hours are one of the most underused resources in college. Professors are required to hold them, rooms are often nearly empty, and a 10-minute conversation can eliminate hours of solo confusion.

How to Prevent This Going Forward

Review Within 24 Hours

Research on the forgetting curve — first described by psychologist Hermann Ebbinghaus in 1885 — shows you forget approximately 70% of new information within 24 hours without review. A 10-minute review the night of each lecture prevents confusion from compounding over weeks.

Flag Confusion in Real Time

When you don't understand something in a lecture or while reading, mark it immediately. Write a question mark and a short note about what didn't make sense. You'll forget the specifics of your confusion just as fast as you forget the content itself.

Use Practice Problems Early

For quantitative subjects, do practice problems from day one — not just before exams. Confusion surfaces immediately when you try to apply a concept, which is far better than discovering a gap two days before the test.

Build Your Own Explanations

After each lecture, write a one-paragraph plain-language summary of what you just learned. This catches confusion while the lecture is still fresh and gives you a diagnostic record of exactly where your understanding starts to break down.

Frequently Asked Questions

What should I do if I don't understand anything in a class?

Start with the most foundational concepts from the course syllabus and work forward. Use an alternative resource — YouTube, Khan Academy, or a different textbook — to rebuild from the basics. A single session at office hours or with a tutor can help you identify your biggest gaps and create a recovery plan. One confusing week doesn't mean the whole subject is lost.

Is it okay to use AI to help me understand difficult material?

Yes — AI tools are particularly good at re-explaining concepts in different ways, generating worked examples, and quizzing you on weak spots. The key is using AI to build real understanding, not to get answers without engaging with the material. Always test yourself after using AI for explanations to verify you actually learned it.

How long should I try to understand something before asking for help?

If you've spent 30–45 minutes on a single concept using at least two different resources and still don't understand it, it's time to ask a human. Spending 3 hours alone with a confusing concept usually produces frustration, not understanding. Getting help sooner is almost always the more efficient choice.

Can I pass an exam on material I don't understand?

Rarely, and not sustainably. Students sometimes memorize enough surface-level information to pass straightforward exams, but real understanding is required for application questions, essays, and cumulative assessments. If the subject has prerequisites, confusion now compounds into much worse confusion later.

Conclusion

Feeling stuck on material doesn't mean you're not capable — it means your current approach isn't matching the type of confusion you're dealing with.

Diagnose the specific gap. Find a resource that explains it in a way that works for your brain. Break the concept into its smallest pieces. Test yourself until you can explain it without looking. Use AI tools to target your specific weak spots, and get human help when self-directed approaches aren't breaking through.

Understanding isn't optional — and with the right approach, it's always within reach. If you want to identify exactly where your knowledge gaps are and fix them efficiently, Snitchnotes turns your own notes and lectures into targeted quizzes that find and fix your weak spots automatically.