Network models
I can explain why network models are used and describe the Open Systems Interconnected (OSI) model
Network models
I can explain why network models are used and describe the Open Systems Interconnected (OSI) model
These resources will be removed by end of Summer Term 2025.
Switch to our new teaching resources now - designed by teachers and leading subject experts, and tested in classrooms.
These resources were created for remote use during the pandemic and are not designed for classroom teaching.
Lesson details
Key learning points
- Network models are essential frameworks used to standardise communication between diverse devices across a network.
- Common network protocols operate at specific layers and serve defined purposes in data transmission.
Keywords
OSI model - a seven-layer model that describes how different computer systems can communicate over a network
Encapsulation - when data is packaged with additional information as it moves down through the layers of the network model
Decapsulation - when data is received and unpacked by a device as it moves up through the layers of the network model
Common misconception
The internet is built directly on the OSI 7-layer model, and its layers are actual physical hardware components.
The OSI model is a conceptual framework, not the internet's direct architecture. It helps to understand network functions.
To help you plan your year 11 computer science lesson on: Network models, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 11 computer science lesson on: Network models, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 4 computer science lessons from the The internet and web technologies unit, dive into the full secondary computer science curriculum, or learn more about lesson planning.
Equipment
Licence
Lesson video
Loading...
Prior knowledge starter quiz
6 Questions
Q1.What is a protocol in computer networking?
Q2.What does a secure protocol do?
Q3.What usually assigns IP addresses on a local network?
Q4.Which of these is an example of a protocol?
Q5.What does 'IP' stand for in networking?
Q6.Order these steps for a device joining a local network:
Assessment exit quiz
6 Questions
Q1.What is the main purpose of the OSI model?
Q2.What is the process called where data is packaged with extra information as it moves down through the layers of a network model?
Q3.What is the process called where extra information is removed from data as it is received?
Q4.Match each layer to its main function:
delivering data to software
routing data
managing reliable data transfer
sending bits over hardware