3-2-1
Updated 2026-08-08
INTRODUCTION
English translation pending.
CORE DEFINITION
The 3-2-1 bridge asks a learner to record three ideas, two questions and one metaphor about a topic before studying it, then to repeat the same three-part structure afterwards and compare the two sets. The identical format before and after makes changes in understanding visible, since the same structure is filled from two different states of knowledge. It is a metacognitive routine designed to make conceptual change observable rather than assumed.
SCAFFOLDING EFFECT
Reduce cognitive load
- Record the starting point: capture your ideas, questions and metaphor before learning begins. - Repeat the same structure: fill in the identical three-part format again afterwards. - Compare the two sets: identify which beliefs changed and which ones survived intact.
Anchor fast decisions
Learning is usually experienced as a flow of information with no record of what was understood beforehand, so changes in understanding go unnoticed. Recording the same structure twice creates a before-and-after pair that can be compared directly. The comparison reveals which prior conceptions were replaced and which questions remain open.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/3-2-1verified
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