If you understand it but can't explain it, you can recognize the idea when it's in front of you but can't yet produce it without the page. The fix is to test yourself the way an exam will, with the page closed: get the idea back from memory, say why it works, and use it on a case the book never showed you. "I get it" is judged with the answer still in view; each of those checks takes the answer away.
These are three checks you can run alone before you move on from a topic: retrieve it with the page closed, explain it in your own words, and apply it to a problem you haven't seen.
You read the section on encoding twice, automatic processing and effortful processing, and both definitions make sense: okay, I get it. Then a practice question describes someone's drive to work and asks which kind of processing it was, and you can't tell which definition it wants.
Students describe the same moment online. On r/GetStudying: "You read the chapter, watched the lecture, felt fine, then a practice question exposed you completely" (thread). On r/LawSchool: "…I feel like I understand what I’m learning, but I am having difficulty in applying what I’m learning" (thread).
In the scene and in both posts, the problem is timing. "I get it" was decided with the explanation open, and the question arrived after it closed. From the inside, following an idea and being able to rebuild it feel exactly the same.
Why does "I get it" feel like understanding when it isn't?
Because you judge it with the answer in view. While you read, every step sits on the page and looks obvious, and that ease feels like knowing. A test takes the page away and asks you to produce the idea, a different job from following it.
Asher Koriat and Robert Bjork (2005) called this an illusion of competence and traced where it comes from. In one experiment, 20 undergraduates studied word pairs and rated how likely they were to recall each second word from the first. Some pairs ran against the way memory links them, like cats–kittens: with both words on screen the link looks obvious, but cats on its own rarely brings kittens to mind. For those pairs, students predicted they would recall about three in four and recalled about three in five. Where the first word does call up the second, prediction and recall matched. Word pairs are not a chapter and 20 students is a small sample, but the logic is general: you judge your learning in the presence of the very information the test will ask you to supply.
"Understand" is also not one thing. In David Krathwohl's (2002) overview of the revised Bloom's taxonomy, the lowest level, Remember, already splits into recognizing and recalling; explaining is filed under Understand, and carrying out a procedure in a given situation is Apply. "I get it" is usually recognizing. Each check below asks for one step further up.
You can see the gap on yourself in a few minutes. Ritsu's Bloom Test page has a seven-question sample check on an example lecture (Newton's laws), one question at each level from Remember to Create, that needs no upload and no account. The full test does the same on something you've studied and shows where your understanding holds and where it breaks. Test My Understanding
How do you run the three checks?
Pick one idea you're about to move on from: a pair of definitions, a mechanism, a method. Run the checks in order, on paper, book closed, and open the page only to grade what you wrote. One idea takes about half an hour.
Don't run them the minute you finish reading. In Thomas Nelson and John Dunlosky's (1991) experiments, again with word pairs, people predicted their later recall far more accurately when they judged a pair a little later, after studying other items, than right after seeing it. Take a break first.
Step 1: Retrieve it with the page closed (5 minutes)
From memory, write what the idea is: the definition in your own words, its parts, the book's example. Then open the page and grade the sheet line by line, circling what's missing and crossing out what's wrong.
You pass when the key terms and the difference between them are there without a peek. The usual mistake is checking in your head: you think of the term, feel a quiet yes and move on. That yes is recognition again. This step is active recall, used as a test.
In Ritsu: /askme asks you a question and waits for a typed answer; its hints stay locked for the first minute.
Step 2: Explain it in your own words (10 minutes)
Now write why it works, as if for a classmate who missed the lecture: what it is, what causes what, and one example of your own, not the book's. Then ask "why?" of your own explanation, twice.
You pass when the chain holds without the book's sentences and your example fits. You fail at the first "it just does," or when you catch yourself reciting the book. That sentence marks the edge of what you understand: the most useful line on the sheet.
Leonid Rozenblit and Frank Keil (2002) found that edge in the lab. Yale students rated how well they understood devices such as a zipper, a flush toilet or a cylinder lock, wrote a step-by-step explanation of how each works, and rated again. The ratings dropped once they had tried. The authors called it the illusion of explanatory depth; the Feynman technique is built on the same test.
In Ritsu: an open question such as "In your own words, explain what the memory cycle is…" comes back graded, with feedback and a model answer.
Step 3: Apply it to a problem you haven't seen (15 minutes)
Find a problem that doesn't look like the book's example: an end-of-chapter question you haven't done, a past exam question, or the example with its setting changed. Before you solve it, write one line: which idea applies, and what in the problem tells you so. Then solve it and check.
You pass when the situation itself told you the idea, not the chapter heading. The usual mistake is practicing on examples you've seen solved, which quietly turns this into check 1. Mixed problem sets help for the same reason interleaving does: they make you choose.
Psychologists call this transfer of learning, and Mary Gick and Keith Holyoak (1980) showed how hard it is. People read a story about a general whose small groups of soldiers converge on a fortress from every side, then tried a puzzle with the same structure: destroy a tumor with rays that would harm healthy tissue at full strength. The answer is the general's, many weak rays meeting at the tumor. Most people did not use the story on their own; told it might help, most did. In that lab, knowing a solution and seeing where it applies were different abilities.
In Ritsu: /solve in DIY mode holds the solution back until you write an attempt, and a wrong attempt gets feedback and a guided retry.
What do you do when a check fails?
Go back to the part that failed, not to the whole chapter, then run that check again.
| Check that failed | What it tells you | What to do next |
|---|---|---|
| Retrieve | It isn't stored in a form you can get back | Reread only the missing part, close it, write it again |
| Explain | You hold the words, not the mechanism | Reread where your "why" stopped, then explain again |
| Apply | You know it in the book's setting only | Work out why it fits a solved example, then try a new problem |
| None | You can do without the page today | Move on, and retrieve it again in a few days |
A pass today still fades, so retrieve the idea again in a few days and in a week; spaced repetition is the same habit run by software. Together the three checks make a mastery check: a short test you run on yourself before moving on. It doesn't ask "Did I finish?" but "Can I retrieve, explain or apply it without my notes?"
What does this look like on a real chapter?
Take the part on encoding in section 8.1 of Psychology 2e, the free OpenStax textbook (Spielman, Jenkins and Lovett, 2020), which sorts encoding into two kinds. Automatic processing is "the encoding of details like time, space, frequency, and the meaning of words," and it "is usually done without any conscious awareness." Effortful processing is what your test material needed: "It probably required a lot of work and attention on your part in order to encode that information." A figure caption adds that learning to drive takes effort and attention, and that once you know how, you encode more about it automatically.
Two definitions, one example each: the point where the scene at the top said "I get it."
Check 1, retrieve. Page closed: "Automatic: encoding that happens without awareness, for things like when, where and how often. Effortful: encoding that takes attention and work, like studying for a test." Graded against the page, that passes.
Check 2, explain. Why can you say what you had for lunch but not what was on the page you read twice last night? "Lunch is a when-and-where detail, encoded automatically. The page needed attention, and reading it twice with my mind elsewhere didn't give it any." Your own example and a causal chain: a pass.
Check 3, apply. A new case, the practice problem used in the video above: Maya has driven the same route to work for five years and can't recall a single turn from this morning's drive. Later, in a workshop on new software, she takes careful notes, asks questions and repeats the steps in her head. She leaves mentally drained but can recall the tool's main features. Which kind of processing was mainly at work on the drive, and which in the workshop? Write your answer before you read on.
Here is the attempt typed in the video's session, the kind someone who passed checks 1 and 2 could write: "The drive was effortful processing: driving takes a lot of concentration, so her attention was used up and nothing got stored. The workshop was automatic processing: she just absorbed the tool by being in the room…"
It has the two kinds backwards. It sorts them by how hard the activity feels: driving is demanding, so it must be effortful. The book sorts by the encoding: did getting this into memory take deliberate attention? After five years the route takes none, so the drive is automatic. The workshop, with its notes, questions and rehearsal, is effortful by the book's own description, and feeling drained fits. It also misses what the driving caption says: Maya's route was effortful once, while she learned it, and became automatic with practice.
Checks 1 and 2 used the book's own examples, which arrive already labelled automatic or effortful. Only the new case asked for the rule that sorts any example: did this take deliberate attention? The first two checks tested the definitions; the third tested whether you could use them.
So write the rule as a question and try a second case. A student can picture where she sat while reading the definition of encoding but can't recall the definition. What was automatic, and what needed effort she didn't give? The room was encoded automatically, since place and context come free; the definition needed effortful processing that half her attention didn't supply.
Getting Maya wrong at your desk tonight is cheap: it shows you the rule you were missing before an exam question does.
When are these checks the wrong tool?
Skip or shorten them in these cases:
- You only need to look it up. A constant, a function's syntax, a formula you may bring into the exam: know where it is.
- You only skimmed it. A blank sheet at check 1 means the idea was never encoded. Read the section once with a question in mind, then check.
- The skill is a performance. A language, a piece of music, a lab technique: make check 3 the main one, and make it the real thing.
- It's the night before the exam. Run check 3 alone on the topics worth the most marks, and spend the next hour where it fails.
- You can't trust the problem. An answer key from an unknown source, or a question an AI wrote, can be wrong. Confirm it against your textbook before you count a fail.
How do you run the three checks in Ritsu?
Alone, the weak point is the grading. When you check your own answer against the page, you tend to read what you meant rather than what you wrote, and new problems are scarce when the book's examples are all you have. The reversed Maya attempt above would have looked right to whoever wrote it; it came from someone who passed the first two checks.
In Ritsu the same three checks run on your own file, and your written answer is graded before any solution appears. The video at the top of this page runs them on the chapter from the worked example, OpenStax's memory chapter. These are its moments.
First, the Maya miss, graded. In the video's session the reversed attempt goes in on purpose, and the feedback names both errors in one sentence: "You have reversed the definitions of automatic and effortful processing and missed the core concept of how skills transition between the two over time." The second half names a gap the attempt never noticed, effortful processing turning automatic with practice, which is the book's driving caption. The worked solution stays behind Show Solution until you ask for it.
1. Drop in the chapter and say what you want from it. Choose File, add the PDF, type your focus and press Start Learning. The chapter comes back as an ordered path of small units, each traced to the page it came from; in the video, automatic vs. effortful processing is one of the first unit's points of knowledge.
2. Retrieve and explain before you read on. A lesson opens with one short question to see where you stand. /askme can then ask for the idea in your own words, hints locked at first, and your answer comes back graded, with feedback and a model answer.
3. Apply it, attempt first. A practice problem keeps its worked solution closed until you've written an attempt. That is where the Maya miss came from, and where the feedback above appeared.
4. Retry, then let it come back. After the miss, Try a similar exercise brings a new case, three students this time, and the corrected answer is graded and counted toward the concept. Press Add to Review and the session returns after 1, 3, 7, 16 and 35 days, so check 1 runs again before the idea fades.
Before you leave a whole chapter, check all of it. Bloom Test is the standalone version of these checks: upload something you've studied and it writes five questions for each level you pick, from Remember, Understand and Apply up to Create. Objective questions are graded by fixed rules, written answers against an answer key and rubric grounded in your material. The report names the checkpoints you met, partly met or missed, so "weak at applying" becomes a specific gap you can work on. A chatbot can quiz you on a chapter too, and for one sitting that works; but it writes different questions every time and keeps no score, so a retake can't show what changed. Bloom Test asks the same checkpoints on every attempt.
Every graded answer in a session also counts toward the concept's score on the knowledge map, scores you earned, not self-ratings. And every question and explanation shows the page of your file it came from.
A full test needs a free account and draws on the credits it includes; the sample needs nothing. There's no timer. It is a snapshot of how deep your understanding goes on that material, not an exam prediction, and its page is plain about the limit: "It measures the gap. It doesn't close it." Closing it is what the session above is for.
Run it on the chapter you're about to leave behind: upload it, choose Remember, Understand and Apply (15 questions), and see which level breaks first. Test My Understanding
FAQ
Q: Is it possible to understand something but not be able to explain it?
Yes. Following an explanation and producing one are different skills: you can recognize each step while it's in front of you and still be unable to rebuild the chain alone. Rozenblit and Keil (2002) found that people rate their own understanding lower as soon as they try to explain it step by step.
Q: What is it called when you understand something but can't explain it?
One version is the illusion of explanatory depth: you feel you know how something works until you try to explain it (Rozenblit and Keil, 2002). Judging your learning with the answer in view, then failing without it, is an illusion of competence (Koriat and Bjork, 2005).
Q: Why do you feel you understood something but still can't solve questions on it?
Because the lesson hands you the right idea and the question makes you find it. In a worked example the method is already chosen; a new problem makes you spot which idea applies from the situation alone. Practice on unseen problems, and name the idea first.
Q: What should you do if you don't understand something?
Find the exact point where it breaks before you reread anything. Close the page, write what you can, and explain it until you reach "it just does." Reread only that part, then explain it again. If the gap is an earlier idea the section assumes, go back to that idea first.
Q: Can Ritsu run these checks on my own material?
Yes. In a study session on your own file, Ritsu asks you to recall, explain and attempt a problem, and grades what you write before showing a solution. Bloom Test checks a chapter you've studied, from recall to reasoning, and reports where your understanding breaks. A free account is enough to start.
The takeaway
"I get it" tells you the page made sense. Retrieve, explain and apply tell you whether you can do without it.
Take the section you're about to move past this week, upload it to Bloom Test, and see which check it breaks at first. Test My Understanding
Sources
- Gick, M. L., & Holyoak, K. J. (1980). Analogical problem solving. Cognitive Psychology, 12(3), 306–355. https://doi.org/10.1016/0010-0285%2880%2990013-4
- Koriat, A., & Bjork, R. A. (2005). Illusions of competence in monitoring one's knowledge during study. Journal of Experimental Psychology: Learning, Memory, and Cognition, 31(2), 187–194. https://doi.org/10.1037/0278-7393.31.2.187
- Krathwohl, D. R. (2002). A revision of Bloom's taxonomy: An overview. Theory Into Practice, 41(4), 212–218. https://doi.org/10.1207/s15430421tip4104_2
- Nelson, T. O., & Dunlosky, J. (1991). When people's judgments of learning (JOLs) are extremely accurate at predicting subsequent recall: The "delayed-JOL effect." Psychological Science, 2(4), 267–271. https://doi.org/10.1111/j.1467-9280.1991.tb00147.x
- Rozenblit, L., & Keil, F. (2002). The misunderstood limits of folk science: An illusion of explanatory depth. Cognitive Science, 26(5), 521–562. https://doi.org/10.1207/s15516709cog2605_1
- Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020). Psychology 2e, section 8.1: How Memory Functions. OpenStax. https://openstax.org/books/psychology-2e/pages/8-1-how-memory-functions (read 2026-10-18)
By Ritsu Team · Last updated October 18, 2026
