These descriptions of performance in turn propel them to provide students with opportunities to develop and practice these skills that might otherwise have been missed if “understanding” had been left only as the globally stated goal of the unit. For example, evidence of understanding would be found if students could explain, interpret, apply knowledge, evaluate perspectives, demonstrate empathy, and reveal self-knowledge. And each of these facets can be further elaborated to make clear what it is that students would be able to do as evidence of understanding.