link by Nicky Case cites ❐ Why Minimal Guidance During Instruction Does Not Work﹕ An Analysis of the Failure of Constructivist, Discovery, Problem-Based, Experiential, and Inquiry-Based Teaching article built around ~ what's effective for a novice is ineffective for an expert and vice versa ~ learning by exploring is ineffective for beginners, but very effective for advanced learners ~ passive learning by instruction is effective for beginners, but ineffective for advanced learners ~ expertise reversal effect can be explained with CLT, ZPD and scaffolding theory