## 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

### 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...

### Hexadecimal

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...

Click here for recommended Edexcel GCSE Computer Science textbooks.
### Edexcel GCSE Computer Science: Machines & Computational Models

This video covers computational models. It also includes virtual Machines along with the Sequential, Parallel, and Multi-agent computational models
that are included in the Edexcel IGCSE course.

*Updated: 2017-11-05*

### Input-Process-Output (IPO) Model

The Input-Process-Output model is a simple topic but some students sometimes find it confusing. This video gives a good overview of why we think about computer systems in this way. Note that this explanation doesn't include Storage and Communication (as required by some GCSE courses) - instead it includes Storage and Feedback.

*Updated: 2018-02-17*