This document discusses learning objects and instructional design. It defines learning objects as small, self-contained and reusable chunks of learning content ranging from 2-15 minutes. Learning objects can be aggregated into larger collections and are tagged with metadata. The document also outlines the steps in instructional planning, including analyzing situational factors, setting learning goals, selecting teaching activities, and planning feedback and assessment. It describes instructional design models focused on classroom setup, products, and systems. Finally, it discusses Dick and Reiser's instructional systems design model.