Establishment of a Resilient Fathers Online Learning Collaborative and Resource Center utilizing Universal Design Learning (U.D.L.)U.D.L. is based upon the most widely replicated finding in educational research: learners are highly variable in their response to instruction. The three U.D.L. principles are engagement, representation, and action and expression. In virtually every report of research on instruction or intervention, individual differences are not only evident in the results; they are prominent. However, these individual differences are usually considered sources of annoying error variance as distractions from the more critical "main effects." U.D.L., on the other hand, treats these individual differences as an equally important focus of attention. These findings are fundamental to understanding and designing effective instruction when viewed through the U.D.L. framework.