In this video, the teacher explains how to organize the body of an essay using boxes and bullets. The teacher emphasizes the importance of including the introductory outline in the body organization and provides step-by-step instructions on how to transfer the information from the outline to the body organizer. The video also highlights the significance of adding supporting details and counting the bullets to ensure sufficient information for each paragraph. Overall, it offers a clear and practical approach to structuring the body of an essay.