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This article discusses the change in the notion of scaffolding from a description of the interactions between a tutor and a student to the design of tools to support student learning in project-based and design-based classrooms. The notion of scaffolding is now increasingly being used to describe various forms of support provided by software tools, curricula, and other resources designed to help students learn successfully in a classroom. However, some of the critical elements of scaffoldingdoi:10.1207/s15326985ep4001_1 fatcat:qlpkrs5tcfevvflfooxo4pi6ua