“From the standpoint of the educator…the various studies represent working resources, available capital. Their remoteness from the experience of the young…is real. The subject matter of the learner…cannot be identical with the formulated, crystallized knowledge of the adult…. Failure to bear in mind the difference…is responsible for most of the mistakes made in the use of texts and other expressions of preexisting knowledge.”
Excerpted from: Wiggins, Grant, and Jay McTighe. Understanding by Design. Alexandria, VA: ASCD, 1998.