Pearson's Learning Foundations describe the optimal conditions for learning and reflect the learner experience Pearson hopes their products will create. Pearson does this by incorporating the Learning Design Principles. Each of the Learning Design Principles goes into detail about a key principle, supporting product design and marketing by describing: (1) the research that informs the principle; (2) why it matters in learning; and (3) how to apply it in practice. This document discusses why learning should be appropriately challenging and take appropriate effort. Scaffolding can be utilized to support learners through appropriately challenging tasks. This Learning Design Principle explains how to use scaffolding to support students through different stages of progress.