GCSE – Lesson 11 – The OSI model

Note: This is a short lesson that goes into the details of the OSI model. The OSI model only appears on one English examination board specification, which means that teachers of the other specifications may wish to skip this lesson. This lesson will not be referred to in subsequent lessons.

This lesson introduces learners to the conceptual, OSI model. It provides descriptions for each of the seven layers and how these relate to the TCP/IP model that was covered last lesson. Learners are then given an activity sheet to complete that relates to the content covered in the slides. Finally, a plenary checks that they can remember the names of some of the seven layers.