pbl

Understand the problem Plan how you’re going to solve it Code up the solution Reflect on what you could do better 理解，计划，执行，反思

PBL 类似，项目式学习（Project-Based Learning, PBL）：

1. 提出问题/核心问题
2. 规划/探索
3. 创作/实施
4. 展示/反思