Glossary & Terms
Glossary of Core Learning Terms: Definitions, Examples, and Cross-Links
Retrieval practice is the effort to bring information to mind without looking at the source; rereading is looking at the source again. The difference matters because a learner can recognize a sentence on a page yet still be unable to explain or use its idea when the page is closed.
Published October 9, 2026
Learning objective
By the end of this primer, you should be able to distinguish retrieval practice from rereading, spaced practice from cramming, feedback from simply checking an answer, and a learning objective from a broad topic. You will also be able to choose a suitable study action for a particular moment: first exposure, later review, or correction after a mistake.
This page follows the ABC212 teaching sequence: objective, explanation, worksheet. The objective names the skill; the explanation defines terms through practical examples; the worksheet asks you to use those distinctions rather than merely repeat them. For the larger sequence of study stages, see The 212 Learning Ladder. For editorial standards behind the site’s explanations and resource choices, visit Editorial Methodology.
Primer: terms that shape a study session
Learning vocabulary can sound more technical than the work it describes. Its value is practical: a well-defined term helps you choose an action, notice what happened, and decide what to change. The entries below use one continuing example—a learner studying the water cycle—so that differences between related terms remain visible.
Retrieval practice
Retrieval practice means attempting to recall information from memory before consulting the source. A learner might close a diagram of the water cycle and answer, “What process turns liquid water into water vapor?” If the learner says “evaporation,” that answer has been retrieved. If the learner cannot remember, the attempt still reveals what needs review.
Retrieval is not the same as rereading a definition and feeling familiar with it. The useful test is whether you can produce an answer with the material out of view. That answer may be spoken, written, sketched, or demonstrated; the key is that the learner tries to bring the information to mind rather than simply encounter it again.
Keep the question narrow enough to answer and specific enough to diagnose. “Explain everything about the water cycle” is a poor first prompt: it asks too much at once and makes an incomplete answer hard to interpret. “What is condensation, and what does it form in a cloud?” is more useful. Retrieval prompts can be collected in the printable worksheets and cheat sheets library.
Rereading
Rereading means returning to previously encountered material and reading it again. It can help when a concept is unfamiliar, when an explanation was missed, or when a learner needs to check a detail. But rereading alone does not show whether the learner can recall or apply that detail independently. A passage can feel easy to understand while it is in front of you and become difficult to reconstruct later.
Use rereading as a targeted repair, not as the only evidence of learning. For example, try to explain evaporation from memory, notice that you have confused it with condensation, then reread the relevant paragraph to correct the distinction. The sequence—attempt, identify the gap, consult the explanation—is more informative than reading the whole section repeatedly without a question in mind.
Spaced practice
Spaced practice distributes learning and review over time rather than concentrating every attempt in one sitting. A learner might study the water-cycle vocabulary on Monday, try to recall it again on Tuesday, and revisit it the following Friday. The intervals do not have to follow a universal formula; a sensible schedule depends on how soon the learner needs to use the knowledge and how well it can already be recalled.
Spacing is about when practice occurs. Retrieval practice is about what the learner does during an attempt. The two can be combined: answer a question from memory today, then answer it again after an interval. They can also be separated: reread notes on several different days, for example, which is spaced rereading but not retrieval practice.
A simple calendar is enough to make the difference concrete. After a first lesson on Monday, place a short recall check on Tuesday and another on Friday. If the Friday answer is fluent, move the next check farther out; if it is incomplete, review the confusing part and try again sooner. For a sequenced route through related topics, see Educational Module Tracks.
Cramming
Cramming concentrates a large amount of study into a short period, often immediately before a test or deadline. It may help someone become more familiar with material in the near term, but it leaves little time for review across separate sessions. A learner who spends two hours repeating water-cycle terms on Sunday night has used a different pattern from one who makes brief attempts on several days.
The useful distinction is not “long session bad, short session good.” A long session may be appropriate for a project or an initial explanation. The issue is whether all study is concentrated into one block, with no later opportunity to recall, correct, and revisit. When time is short, a focused review can still be made more diagnostic: answer a few questions without notes, check them, and spend the remaining time on the errors that matter most.
Feedback
Feedback is information that helps a learner compare an attempt with a goal and decide what to do next. A mark showing an answer is incorrect is a minimal form of feedback. A more useful response identifies the specific confusion: “Condensation is the change from water vapor to liquid droplets; evaporation is the change from liquid water to vapor.” That contrast gives the learner something to repair.
Feedback is most useful when it arrives while the attempt can still be examined and when it points toward an actionable next step. In a self-study session, an answer key, worked example, or carefully written explanation can provide it. Checking an answer without considering why it was wrong is less useful: the learner has detected an error but may repeat the same reasoning next time.
For a workable routine, answer first, check second, and then write a short correction in your own words. If the correct answer was “condensation,” do not stop at circling that word. Note what feature separates it from evaporation, then use a new example—such as water droplets forming on a cold glass—to test whether the distinction holds.
Learning objective
A learning objective states what a learner should be able to do after a lesson or study activity. “The water cycle” names a topic. “Explain how evaporation and condensation differ, using one example of each” describes an observable performance. Objectives are stronger when they name an action—such as define, compare, calculate, or justify—and give enough scope to make success checkable.
An objective is not a guarantee that learning has occurred. It is a target for planning and checking. If the objective says “compare evaporation and condensation,” a worksheet should ask for a comparison, not only a multiple-choice definition. When objective and check match, learners can see what the activity is meant to build and whether their attempt demonstrates it.
ABC212 makes this relationship visible on purpose. The objective appears before the primer so readers know what distinction to look for; the explanation supplies terms and examples; the worksheet asks the reader to apply them. This structure is shared across the site’s ABC-level primer articles and practical tutorial checklists.
Worked example: choosing the right action
Suppose you have ten minutes to prepare for a short quiz on the water cycle. You have read the relevant page once, but you are unsure whether you can explain the stages without looking. Start with retrieval practice: close the page and list the stages you remember. Compare your list with the source and use feedback to correct an omission or mix-up. Put a brief review on tomorrow’s calendar to create a spaced follow-up.
Notice what this plan does not require: it does not ban rereading, and it does not assume that every topic needs the same schedule. If you cannot recall a term at all, a short reread can restore the explanation. If you can recall it now but want to retain it, a later attempt is more informative than reading the same paragraph again immediately. The method follows the problem you have actually found.
A compact comparison
| Term | Main question | Example |
|---|---|---|
| Retrieval practice | What does the learner do? | Close the notes and name the process that forms water vapor. |
| Rereading | How does the learner revisit material? | Read the explanation of evaporation again. |
| Spaced practice | When are attempts distributed? | Review on Monday, Tuesday, and Friday. |
| Cramming | Is study concentrated into a short period? | Repeat the full set of terms in one late-night session. |
| Feedback | What information helps improve the attempt? | Learn why “evaporation” does not describe droplets forming on glass. |
| Learning objective | What should the learner be able to do? | Compare evaporation and condensation with an example of each. |
The table separates ideas that often appear together. Retrieval practice and spacing, for instance, are not rival techniques. One describes the action; the other describes the timing. Feedback can follow retrieval, and an objective can tell you what the retrieval question should test.
How to use glossary entries and cross-links
A glossary is most useful when it does more than provide a short definition. It should help you move from a word to a decision: which tutorial to follow, which worksheet to use, or what question to ask next. When a term appears in another primer, compare the definition with its use in context. The meaning should stay consistent, while the example may change with the subject.
Use the site’s Glossary of Core Terms as a quick reference during study, then return to the relevant primer for a fuller explanation. If you need a procedure rather than a definition, the tutorial checklists provide ordered steps. If you are planning a sequence of study, the learning path offers a broader route through the material. These pages serve different purposes; a glossary entry should not have to carry the whole lesson.
When you encounter a new learning term, test it against three questions:
- What does the term describe? An action, a schedule, information, or a target?
- What would count as an example? Use a specific task, not a second abstract definition.
- What neighboring term could be confused with it? State the difference in one sentence.
These questions make terminology useful without turning study into memorization of labels. If you can recognize retrieval practice only when the phrase appears in a paragraph, you have learned the phrase. If you can identify a retrieval attempt in your own study plan and distinguish it from rereading, you can use the idea.
Worksheet: define, design, distinguish
Complete this short worksheet without looking back at the definitions. Then check your responses against the primer and revise any answer that relies on a vague phrase such as “studying more.” A printable version can be adapted from the site’s worksheets and cheat sheets.
- Define: Write a one-sentence definition of retrieval practice in your own words. Include what the learner does and whether the source is visible.
- Design: Write one question about a topic you are studying that you could answer from memory tomorrow. Make the question narrow enough to check.
- Distinguish: Explain in one sentence how your planned retrieval question differs from rereading the relevant paragraph.
- Schedule: Choose a second date for a later attempt. State why that date is spaced review rather than another part of the same study block.
- Use feedback: Describe what you will do if your answer is incomplete. Identify the source or answer key you will consult and the correction you will record.
- Match the objective: Write a learning objective for the topic using an observable action, such as compare, explain, or calculate. Then make sure your question checks that action.
Self-check: Your retrieval definition should mention trying to recall information without consulting the source. Your question should have an answer that can be checked. Your schedule should place attempts in separate periods, and your feedback plan should do more than label an answer right or wrong. If one of these pieces is missing, revise the plan before using it.
Put the terms to work
For a practical study routine, begin with the objective, attempt an answer from memory, check it, and respond to the gap you find. Use rereading to repair a specific misunderstanding; use spacing to return to material at a later time; use feedback to decide what to correct. The terms are related, but they are not interchangeable—and that precision makes a study plan easier to evaluate.
Keep the distinction concrete: retrieval practice is an attempt to bring information to mind; rereading is another encounter with the source; spacing distributes attempts over time. When you can name which action you are taking and what it is meant to accomplish, you can build a learning path that is deliberate rather than merely busy.