Study Lab · For students, parents & teachers
How to actually study
Forget what kind of learner you were told you are. There is no such thing. There are a handful of study moves that work for every brain, and you can prove it to yourself in about six minutes. Read why learning styles keep failing fair tests.
01The engine
Every effective study method in the research comes down to four moves. None of them depends on your personality, your preferences or a quiz result. All four feel harder than rereading, and that is exactly why they work.
The four moves
| What you do | Why it works | |
|---|---|---|
| Retrieve | What you doClose the book. Write down everything you remember. Then check. | Why it worksPulling a memory out strengthens it far more than looking at it again. |
| Space | What you doSplit the same study time across several days. Revisit each topic a week later. | Why it worksLetting yourself partly forget, then recalling, makes memories last. |
| Explain | What you doAsk why each fact is true and answer in your own words. | Why it worksExplaining connects new ideas to what you already know. |
| Mix | What you doOnce you can do a skill, practice it alongside older ones. | Why it worksMixing forces you to choose the method, which is what tests ask for. |
02The lab
Do not take my word for any of this. Run the experiments. There are three, each takes a few minutes, they work on a phone, and nothing you type leaves this page.
Reread vs. Recall experiment, ready to start
Reread vs. Recall experiment, ready to start
You are going to learn two short lists of facts about two made-up places. One list you will reread. The other you will quiz yourself on. Then a short break, then a quiz on both. Guess which method wins before you start.
Based on Roediger & Karpicke (2006), the testing effect and Knoll et al. (2017), preference versus recall. Nothing you enter leaves this page.
Next, timing. Cramming feels efficient because it works for tomorrow. See what it does to next week.
You get 4 study sessions before a test on day 14. Same total time either way. Tap the days to place them, or try the two presets, and watch what happens on test day and a week after.
4 of 4 sessions placed. The test is on day 14.
On test day
84%
One week later
24%
On test day 84%, one week later 24%.
Crammed into the last four days, you remember plenty on test day and lose most of it within a week. Now try spreading it out.
This curve comes from a simple illustrative memory model, not from your own data. The pattern matches the research summarized in Dunlosky et al. (2013), ranking study techniques.
Last, mixing. Doing twenty problems of the same kind feels smooth. Real tests never hand you twenty of the same kind.
Blocked vs. Mixed experiment, ready to start
Blocked vs. Mixed experiment, ready to start
Three rules about prisms. Learn them, then solve two sets of six problems. The first set gives you each type in a block. The second shuffles them, so you have to work out which rule each problem needs.
- Faces = base sides + 2
- Edges = base sides × 3
- Corners = base sides × 2
Based on Rohrer et al. (2020), a preregistered trial with seventh graders. Nothing you enter leaves this page.
03Five things worth knowing about yourself
Students really are different. The differences that matter just are not styles. Five of them predict how a student does, and every one can be measured and improved. They change how much help you need, never which method works.
What each difference changes
| What you notice | What helps | |
|---|---|---|
| Prior knowledge | What you noticeLost from the first lesson; new ideas have nothing to attach to | What helpsMore worked examples and foundational review before working alone |
| Reading skill | What you noticeSlow, effortful reading in every subject | What helpsReading practice, plus audio support so the content keeps pace |
| Executive function | What you noticeMissed deadlines, trouble starting, loses track | What helpsPre-built schedules, checklists, smaller chunks, phone out of the room |
| Self-regulation | What you noticeRereads for hours, cannot tell what they actually know | What helpsA plan, a self-quiz to check, and an adjustment each week |
| Test anxiety | What you noticeKnows it at home, freezes in the exam | What helpsFrequent low-stakes timed practice; treating nerves as readiness |
Want to see where you stand? Ten quick statements, two for each difference.
Ten statements. How often is each true for you?
Ten statements. How often is each true for you?
This is a conversation starter for you and the adults who help you. It cannot diagnose anything, and nothing you choose leaves this page.
When to ask for more
04Routines by subject
The engine stays the same in every subject. What you retrieve and how you practice it changes, because the content changes. You do not cook fish the way you cook brisket.
Weekly routines by subject
| The routine | Why the content demands it | |
|---|---|---|
| Math | The routineMixed review sets including older problem types; worked example, then partial, then blank; error log with a redo a few days later | Why the content demands itMath is choosing the right method. Mixed practice is the only way to practice choosing. |
| Biology | The routineSelf-quiz after each class; redraw key diagrams from memory and explain them aloud; concept map from memory, then check notes | Why the content demands itBiology is mechanisms and structures. You understand a process when you can rebuild it from nothing. |
| Chemistry & physics | The routineThe biology routine for concepts, plus the math routine for problem sets | Why the content demands itHalf explanation, half calculation. Each half needs its own practice. |
| English & essays | The routineAfter reading, a summary plus two questions from memory; planned and revised essays against the rubric; timed essays near exams | Why the content demands itWriting is a skill. Skills grow through practice and feedback, not rereading. |
| History | The routineSpaced flashcards for facts; cause-and-effect chains from memory; sourcing practice with document sets; timed source essays | Why the content demands itHistory is argument from evidence. Students must practice interrogating sources. |
| World languages | The routineDaily spaced flashcards in both directions; daily listening, reading and speaking; memory images only for stubborn words | Why the content demands itLanguage is retrieval under time pressure. Output is the test, so output is the practice. |
| Computer science | The routineTrace worked code by hand; rearrange scrambled code into working order; then write your own | Why the content demands itCode is read before it is written. Tracing builds the mental model. |
| Exams (SAT, AP, IB) | The routineCumulative spaced review from early in the year; full-length timed practice in the real format; error log sorted by cause | Why the content demands itThe exam tests retrieval under real conditions. Rehearse those conditions. |
Now turn it into a calendar. Pick your subjects and your test date, and the builder spaces everything out for you.
Pick your subjects, your test date and how much time you really have each week. You get a dated plan of 30-minute sessions that spaces each subject out and ends with mixed review.
05For parents and teachers
The single most useful thing an adult can do is stop policing homework and start coaching the routine. Ask what the plan is this week. Ask how they will check what they know. Praise the strategy and the effort, not being smart.
Parents: run the first experiment side by side with your teen and compare your guesses. Then build the routine together, put it on the family calendar, and spend ten minutes each Sunday asking how the week went and what needs redoing.
Teachers: five retrieval questions at the start of every lesson, on last week’s material, ungraded. It is the cheapest high-impact change available to you.