This document outlines principles for selecting and organizing content for teaching. It identifies seven qualities that content should have: validity, significance, self-sufficiency, balance, interest, utility, and feasibility. Content should include cognitive elements like facts and concepts, as well as skills and affective elements like values. Strategies are provided for helping students develop conceptual understanding, including exploring topics in depth, relating new ideas to prior knowledge, emphasizing conceptual understanding over isolated facts, and engaging students in teaching others. An effective integration of cognitive, skill, and affective elements is emphasized.