This document outlines a suggested 24-period lesson plan for teaching a chapter on surface area and volume to Class IX students. It includes learning objectives, a period-by-period breakdown of topics to be covered such as surface area of cubes, cylinders, cones, spheres, and volume of cubes, cylinders, cones, spheres. Resources like presentations, videos, worksheets and games are to be used. Formative assessment activities like homework assignments and a jigsaw puzzle activity assessing formula writing are also included.