This document contrasts single-loop and double-loop learning in the context of youth development work. Single-loop learning is reflection "in the job" that occurs in the moment and is often reactive, finding shallow answers. Double-loop learning involves reflection "on the job" after a situation, asking "why" at a deep personal level to create real change by questioning one's own assumptions and bringing theory and practice in line. An example shows how double-loop reflection could lead to better understanding a disengaged youth.