Teach Computing

Revision notes, activities, lesson plans, teaching ideas, and other resources for GCSE, A-Level, and IB Computer Science teachers and students.

What's New

Examples of Local Cryptocurrencies

Digital Money for Local Communities covers three examples of country-wide c...

Hash function A hash function takes arbitrary sized input data (e.g. a fil...

Cryptocurrencies vs regular currencies

What is Bitcoin and How Does it Work? is a high level overview of the Bitco...

Examples of Cryptocurrencies

Bitcoin is by far the most well known cryptocurrency. The Bitcoin website w...

Practice paper 3 exam questions

One of the drawbacks of the yearly case study is that there are no past p...

Emergency Management System Explainer Video

This short video gives an overview of some EMIS features. It includes many ...

Geographic Information Systems (GIS)

For some functionality, an EMIS may also be connected to a GIS (Geographic ...

Programming languages - from Scratch to machine code

The CS Field Guide has a very comprehensive guide to different types of pro...

Assembly language simulators

There are several assembly language simulators available for use online. Si...

Resources discount offer

5.3 The Internet and the World Wide Web

Lesson resources

Networks Banned Words game
Networks revision game
Recommended GCSE Computer Science textbooks
Edexcel Computer Science textbooks
Communications & the Internet keyword bingo game
Communications & the Internet keyword bingo game

5.3.1 Internet Structure and Routing

Packets, Routing and Reliability

The Internet: Packets, Routing and Reliability

This is an excellent video which clearly explained how data is split into packets which are then routed across the Internet. The animated diagrams are particularly useful for helping students visualise how packets can take different routes across the Internet in response to faults or heavy traffic.

Updated: 2016-10-17
IP addresses and DNS

IP addresses and DNS

An overview video covering IP addresses and the workings of DNS.

Updated: 2016-10-17

5.3.2 The World Wide Web


Edexcel GCSE Computer Science: The Internet & the Web

The internet and the world wide web is closely related to, and builds upon, topic Networks. This video covers all of the theory for this component, including HTML and CSS. Of course, practical activities are also essential to understand these last two topics.

Updated: 2016-10-17

5.3.3 IP addressing

5.3.4 Accessing the Internet

Network hardware lesson

Network Hardware (NIC, Switch, Router and WAP)

This video is created specifically for the IGCSE Edexcel Computer Science course. It explains the hardware required to connect to a network - be it a Local Area Network or a Wide Area Network such as the Internet. Switches, routers, and MAC addresses are also covered.

Updated: 2017-11-12