This document discusses principles for selecting and organizing content for teaching. It recommends focusing on content that is valid, significant, balanced, self-sufficient, interesting, useful, and feasible. Facts form the base, but teachers should emphasize conceptual understanding by integrating facts, exploring concepts in depth, and relating ideas to students' experiences. Strategies like authentic activities, dialogue, and teaching others can help develop conceptual understanding. An effective selection and organization of content should integrate cognitive, skill, and affective elements.