Teach Computing

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

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Boolean logic worksheet pack

These three Boolean logic worksheets have exam style questions on logic sta...

Edexcel Computer Science (9-1)

by Ann Weidmann et al Amazon.com | Amazon.co.uk | Book Depository This bo...

Dijkstra's algorithm video

This video is probably the best explanation of Dijkstra's algorithm for IB ...

Input-Process-Output (IPO) Model

The Input-Process-Output model is a simple topic but some students sometime...


A comprehensive review of hexadecimal. The video covers not only how to u...

Subprograms, Local Variables & Structured Programming

Subprograms are known by several different names - methods, functions, proc...

Utility Software and Models

Some students find the difference between operating system software and ut...

Data Structures

This video explains different types of data structures - 1 dimensional ar...

Operating System (OS) - GCSE Computer Science

A detailed overview of operating systems, starting with the general tasks t...

5.3 The Internet and the World Wide Web

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