Instructional design is the systematic development of instruction to ensure quality education. It involves analyzing learning needs and goals to develop effective instruction. Lesson planning is an important part of instructional design as it provides structure and guidelines for teaching. Different approaches to lesson planning include Herbartian's five steps of preparation, presentation, comparison, generalization, and application. The Regional College of Education Mysore approach consists of three aspects - input (objectives), process (teaching strategies), and outcome (learning assessment). An effective lesson plan is clear, organized, linked to previous knowledge, divided into units, flexible, and evaluates learning.