difficulties

A desirable difficulty is a learning task that requires a considerable but desirable amount of effort, thereby improving long-term performance. It is also described as a learning level achieved through a sequence of learning tasks and feedback that lead to enhanced learning and transfer.As the name suggests, desirable difficulties should be highly desirable and increasingly challenging. Research suggests that while difficult tasks might slow down learning initially, the long-term benefits are greater than with easy tasks. However, to be desirable, the tasks must also be achievable.

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