Explanation:
Scaffolding is a metaphor borrowed from construction. Just as a scaffold holds up a building while it is being built and is removed later, instructional scaffolding is the temporary assistance given to a student.

Detailed Topic Insight (The Zone of Proximal Development):
Scaffolding is inextricably linked to the **ZPD (Zone of Proximal Development)**.

Actual Development Level: What the learner can do alone.
Potential Development Level: What the learner can do with help.
ZPD: The gap between the two.

Scaffolding happens inside the ZPD. Examples include breaking a complex task into steps, modeling the answer, or asking leading questions. The key feature of scaffolding is "Fading"—as the student becomes competent, the support is gradually removed. It is not permanent help.

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