MENTAL MODEL · M6742

PAO

SystemsHigh supportSystems Theory

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Updated 2026-08-08

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INTRODUCTION

English translation pending.

CORE DEFINITION

Person-Action-Object (PAO) is a mnemonic system for memorizing long digit strings. Each number from 00 to 99 is assigned a fixed image consisting of a person, an action, and an object. To memorize a sequence, the digits are grouped in pairs, and the three images corresponding to three consecutive pairs are combined into a single scene, so six digits become one memorable image. Recalling the scene retrieves the digits in order. The system requires that the underlying hundred-image set be learned to automaticity first, since compression only works if each image is retrieved without effort.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Use fixed encoding: build and drill the hundred person-action-object images until each is automatic. - Use triple grouping: combine three consecutive digit pairs into one exaggerated scene. - Use vivid exaggeration: make each scene absurd and action-heavy, since ordinary images are forgotten.

anchor

Anchor fast decisions

Abstract digits are difficult to retain because they carry no meaning and offer no retrieval hooks, while images of people doing things are encoded and recalled with far less effort. Assigning a fixed image to each digit pair converts an arbitrary string into a sequence of familiar units, and binding three of them into one scene compresses six digits into a single chunk. Compression matters because working memory holds a limited number of chunks. Recall then proceeds by replaying the scene rather than by searching for digits.

MINIMUM ACTION

In progress 0/1

Practice this model in one real situation:

Assign a person, action, and object to each number from 00 to 99. 2. Drill the hundred images until each one is retrieved automatically. 3. Group the digits you want to memorize into pairs. 4. Combine three consecutive pairs into one vivid, exaggerated scene. 5. Recall by replaying the scenes in order and reading off the digits.

Check to track your progress (stored locally)

Learning progress0%

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Source support: Explicit

link
en.wikipedia.orghttps://en.wikipedia.org/wiki/PaoZH · Explicit
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