# Chunking increases working memory capacity

We have Working memory limits, in terms of how much we can store in our memory. How then we could process more than our limits? The answer is chunking.

Chunking allows us to increase the capacity of our Working memory.


Blinkist: Foer, Joshua. Moonwalking with Einstein: The Art and Science of Remembering Everything. Penguin Press, 2011.

But what if you split the numbers into these dates: 12/4/2000 and 01/01/2001? The information stays the same, but suddenly it's much easier to remember. This is known as chunking. Chunking means combining information into bigger pieces that are easier to understand.

Scientific Secrets for Raising Kids Who Thrive Audiobook | Peter M. Vishton, The Great Courses | Audible.co.uk (opens new window) (Downloadable PDF)

Mnemonics are actually just one example of a broader memory strategy having to do with organizing information. Working memory seems capable of holding onto seven “chunks” of information. A chunk is a meaningfully connected set of information.

Goldstein, Cognitive Psychology (p. 135).

Thus, if the to-be-remembered information allows "chunking," and this is recognised by the learner, than the capacity of STM can be increased.

Chunking increases short-term memory capacity

Goldstein, Cognitive Psychology (p. 135).

It is therefore possible that some people are able to store more items in their STM, not because their STM capacity is larger (i.e., more storage space) but because they use very effective control processes, often in combination with long-term memory (LTM) contents.