36 lines
1.6 KiB
Markdown
36 lines
1.6 KiB
Markdown
---
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title: "Learn-By-Building"
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type: concept
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tags: [methodology, learning, education, pedagogy]
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last_updated: 2026-04-23
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---
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## Aliases
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- Learning by Building
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- Learn Through Building
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- Project-Based Learning
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- PBL
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- 边做边学
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- 项目制学习
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## Definition
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Learn-By-Building 是一种教育方法论：通过主动构建（而非被动消费）来学习新知识。与观看教程或阅读文档不同，学习者通过实际编写代码实现一个系统，在构建过程中自然积累对原理的深层理解。
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## Details
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- **核心洞察**: "What I cannot create, I do not understand"（[[RichardFeynman]]）——无法创造的东西意味着没有真正理解
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- **典型场景**:
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- 用 C 从零实现一个 TCP/IP 协议栈（[[Build-Your-Own-X]]）
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- 用 Python 从零实现一个神经网络（理解反向传播的细节）
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- 用 JavaScript 从零实现一个 React（理解 Virtual DOM 的原理）
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- **适用范围**: 有一定基础的学习者；不适合零基础入门
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- **vs 传统课程**: 传统 CS 教育强调理论（算法/数据结构/操作系统理论），Learn-By-Building 强调实践（从零重建系统）；两者互补
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## Relationship with BYOX
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[[Build-Your-Own-X]] 是 Learn-By-Building 方法论的具体实践形式之一。BYOX 提供现成的分步骤教程资源，降低了"不知道该建什么"的门槛。
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## Connections
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- [[Learn-By-Building]] ← embodies ← [[From-Scratch-Methodology]]
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- [[Learn-By-Building]] ← resources ← [[Build-Your-Own-X]]
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- [[Learn-By-Building]] ← enables ← [[Codecrafters]]
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- [[Learn-By-Building]] ← preceded_by ← [[NAND-to-Tetris]]
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