How to Study When You Have an Hour, Not an Afternoon

It’s 9:15 on a weeknight. The kids are down, the dishes are done, and you have about an hour before you’re too tired to think. You open the textbook and reread the parts you highlighted last week. It feels like studying. By Friday’s quiz, most of it is gone.

That’s a method problem, not a willpower problem. In 2013, a team of psychologists led by John Dunlosky reviewed the research on ten common study techniques and rated each one. Their review put rereading, highlighting and summarizing in the low-utility group. The two rated highest, testing yourself and spreading study out over days, are ones most students rarely use on purpose. A federal Institute of Education Sciences practice guide from 2007 reached similar conclusions.

Both of those methods are made of short pieces, so they suit an hour better than an afternoon. That’s the one piece of luck a busy schedule gets.

The hour, minute by minute

Use this as a default and adjust. The order matters more than the exact minutes.

1. Minutes 0 to 10, recall. From memory, write what you learned last session. Then check.
2. Minutes 10 to 35, new material. One section or one lecture. Then close it and jot the main points.
3. Minutes 35 to 52, practice. Questions that mix this week’s topics with older ones.
4. Minutes 52 to 60, set up next time. List what you missed and write the first task for the next session.

Count it up and 27 of the 60 minutes go to pulling things out of memory, not putting them in. The last block is the one people skip, and it’s what makes the next hour easy to start. Coming back tired to a note that says “start with problems 4 to 6, chapter 3” beats coming back to “study for stats.”

Less than an hour? Cut the new reading, never the recall.

• 30 minutes: 10 minutes recalling last session, 20 minutes of practice questions. No new material tonight.
• 15 minutes: answer five of the margin questions from your notes (card 5) without looking, then check.
• 5 minutes in a parking lot: flashcards on your phone, or say one concept out loud as if explaining it to a coworker.

Card 1: Test yourself instead of rereading

Pulling information out of memory strengthens it more than putting it in again. The Dunlosky review rated practice testing high utility, and the IES guide rated the evidence for using quizzes to revisit material as strong. It doesn’t need to be a formal test; any honest attempt to recall counts. It feels harder than rereading, and it should. Getting things wrong in practice is useful, as long as you check right after.

Card 2: Space it out

The same total time spread across several days leads to better long-term memory than one crammed session. The review rated this high utility too, and it’s the first recommendation in the IES guide, which suggests coming back to key material weeks and even months later. For an adult with scattered free hours, it’s the rare case where your schedule helps: four 25-minute sessions across a week beat one 100-minute session on Sunday.

If your courses run in eight-week terms, the same rhythm applies with roughly twice as many sessions a week. Aim to finish assignments a day early, because something will come up.

Card 3: Mix problem types

When you practice, shuffle different kinds of problems together instead of doing ten of the same kind in a row. In statistics, that means mixing questions about means, percentages and probability, so you have to work out which method each one needs, which is what the test will ask. The evidence for this, called interleaving, is narrower than for testing and spacing (the review rated it moderate) and shows up most clearly in math and problem-solving subjects.

Card 4: Worked examples, then problems

For anything with steps, such as accounting, math or chemistry, the IES guide recommends alternating fully worked solutions with problems you solve yourself, rather than jumping straight to a stack of exercises. As you improve, lean more on the problems.

Card 5: Notes that turn into a practice test

Leave a wide margin on each page. Take notes in the main area during class or reading. Afterward, write a question in the margin for each chunk: “What are the three causes of inflation?” To review, cover the notes and answer the margin questions. You’ve built a practice test, and you never have to reread.

Textbook chapters work the same way. Preview the headings, summary and end-of-chapter questions for five minutes first, so you know what you’re looking for. Turn each heading into a question (“Types of Market Structures” becomes “What are the types of market structures, and how do they differ?”). Read one section, close the book, answer your question in two or three lines, then check. Finish with the chapter’s own questions before looking back; the ones you can’t answer are your review list.

Card 6: Pause the lecture

For online lectures, pause every 10 minutes or so and write what you just heard from memory before you continue. It’s slower than letting the video play, and more of it stays. Watching at 2x feels efficient, but speed was never the bottleneck. Recall is.

Habits to swap

To see whether the sessions fit around your job and family, map them in the time planner; our guide to balancing school, work and family covers the weekly math.

Office hours, and online classes on a schedule

Instructors hold office hours, in person or by video, and many adult students never use them. Ten minutes of conversation can save hours of confusion, and you don’t need a polished question. Words that work:

• “I’m stuck on this kind of problem. Can you watch me try one and tell me where I go wrong?”
• “I work full time and study in short blocks. What would you focus on for the next exam?”
• “I got this question wrong and I don’t see why. Can you walk me through it?”

If office hours clash with work, email: “I work during your office hours. Could we find 10 minutes by phone or video this week? My question is about [topic].” Many instructors will make time.

Online classes add a few traps. Put every due date in your calendar in the first week, with an alarm a day early. Check the course site on a fixed schedule rather than when you remember. Post in discussions early in the week if they count toward your grade. And take any optional practice quizzes: they’re self-testing the instructor already wrote for you. Our guide to online and in-person learning has more on which format you’re likely to finish.

After a bad first quiz

A rough first quiz is common for people returning to school, and early quizzes often count for little. What matters is what you do the next day: sort every miss into one of three piles.

• Didn’t know it: more self-testing and more spacing, starting with the topics you missed
• Knew it but misread or slipped: practice under test conditions, and slow down on question wording
• Ran out of time: timed practice sets, and ask about testing accommodations if you may qualify
• In every case: email the instructor within a few days with one specific question

Give it a few weeks before you judge. Studying this way feels less productive than rereading at first, because it keeps showing you what you don’t know yet. That’s the point of it.