This social sciences lesson plan focuses on communication through time. It covers various topics including the oldest forms of communication used by the San people in South Africa, the development of the postal system, radio, telegraph, telephone, camera, television, computers, the internet, and cell phones. Students will learn about how different forms of communication have changed and developed over time through class activities, discussions, and homework assignments involving pictures and research. The lesson aims to help students select relevant information and write about history in an organized way.