A
Active recall
The practice of retrieving information from memory without looking at your notes.
Instead of re-reading a textbook, you close it and try to write down everything you remember.
It feels harder than re-reading, and that difficulty is precisely why it works.
The brain strengthens a memory each time it has to search for it.
Automaticity
When a skill becomes so well-practised that it requires almost no conscious effort.
Think of how you don't need to think about each letter when you type -
your fingers just know. Automaticity frees up mental space for harder thinking.
It's built through consistent, repeated practice over time.
C
Cognitive load
The amount of mental effort your working memory is using at any one moment.
Think of it like RAM on a computer, you only have so much.
When a task has too high a cognitive load, learning breaks down.
Good teaching reduces unnecessary load so your brain can focus on what matters.
Consolidation
The process by which short-term memories are converted into long-term ones.
This happens mostly during sleep, which is one reason a good night's rest before an exam
matters just as much as the studying itself.
Pulling an all-nighter actively disrupts consolidation.
D
Desirable difficulty
A learning challenge that feels harder in the short term but produces stronger
long-term memory. The term was coined by psychologist Robert Bjork.
If studying feels effortless, you're probably not learning much.
Struggling to retrieve an answer, even failing, makes the eventual memory stronger.
Distributed practice
Spreading study sessions out over time rather than cramming them into one block.
Also called spaced practice or spaced repetition.
One hour across four days beats four hours in one sitting, consistently,
across almost every subject and age group studied.
E
Elaborative interrogation
A strategy where you ask yourself "why is this true?" and
"how does this connect to what I already know?" after reading a fact.
It forces your brain to do something with the information, rather than
letting it slide past. The connections you make act as hooks that make the memory easier to find later.
Encoding
The first stage of memory, the moment new information enters your brain
and gets processed for storage. Not all encoding is equal.
Information linked to meaning, emotion, or existing knowledge encodes far more
deeply than information read passively.
F
Forgetting curve
A graph showing how quickly memory fades after learning,
first described by Hermann Ebbinghaus in 1885.
Without review, roughly half of new information is forgotten within 24 hours
and most of the rest within a week. The curve flattens dramatically each time
you review the material.
How to remember anything forever ↗
I
Interleaving
Mixing different topics or types of problems within a single study session,
rather than blocking all of one type together.
It feels messier and slower, but research shows it significantly
improves long-term retention and the ability to apply knowledge
in new situations.
L
Long-term memory
The brain's vast, relatively permanent storage system.
Unlike working memory, long-term memory has no known capacity limit.
The goal of all studying is to move information from working memory
into long-term memory, where it can be retrieved days, years, or
decades later.
M
Metacognition
Thinking about your own thinking. Knowing when you've understood something,
when you haven't, and which study strategies work best for you.
Students with strong metacognition consistently outperform those without it
, not because they're smarter, but because they study more accurately.
Mnemonic
A memory aid , any technique that links new information to something
more memorable. Acronyms, rhymes, vivid images, and stories are all mnemonics.
Richard Of York Gave Battle In Vain , the colours of the rainbow (Red, Orange,
Yellow, Green, Blue, Indigo, Violet) , is a classic example.
P
Protégé Effect
The phenomenon where teaching or preparing to teach material
improves your own understanding of it.
When you know someone else is counting on your explanation, you study more carefully.
You also become quicker to spot gaps in your own knowledge, the exact gaps
that would have tripped you up in an exam.
R
Retrieval practice
The broader term for any learning activity that involves pulling information
from memory , flashcards, practice tests, writing summaries from memory,
answering questions without notes. The testing effect, the finding that
being tested on material improves retention more than restudying it , is one of
the most robust findings in cognitive psychology.
S
Spaced repetition
A study method that uses increasing intervals between review sessions
to maximise memory retention. You review material just as you're about to forget it ,
which resets the forgetting curve and strengthens the memory.
Apps like Anki automate this process, scheduling reviews at the optimal moment.
W
Working memory
Your brain's mental workspace , the small amount of information
you can hold and manipulate at any one time. Most people can hold
around 4 chunks of information in working memory simultaneously.
When working memory is overloaded, learning stops. This is why breaking
complex topics into smaller pieces is so effective.