Ratchet up difficulty and ambiguity through the learning cycle.

technique — attributed to Arthur Pearson

Pearson's course architecture starts with play, moves to harder collaborative tasks, then keeps raising difficulty, ambiguity, and timeframes. Learning compounds when each round of difficulty requires the team to integrate what the last round taught them.

For program designers building multi-day learning experiences.

learning-cycle, progressive-difficulty, outward-bound, course-design