A lesson plan provides guidance for teachers to achieve intended learning outcomes. It includes key components such as objectives, procedures, presentation, practice, and assessment. Objectives should be specific, measurable, attainable, results-oriented and time-bound. Procedures use techniques like direct instruction, projects and role playing to develop new knowledge. Assessment ensures objectives are achieved and provides feedback for revision. Well-planned lessons keep students and teachers on track, achieve objectives, and enhance learning, while poor planning leads to frustration and a waste of time.