- View more resources from this publisherNichola Wilkin Ltd
Secondary computing resources
A set of resources aimed at secondary school students. The resources were developed by Nichola Wilkin and cover the following topics:
- History of computing
- Networks
- Using Python
- Using Scratch
- Understanding bitmap images
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Data Representation: bitmap Images
Using a spreadsheet as a grid of 'pixels', this computing activity teachers how 1's and 0's can store image data. The classroom exercises use images with increasing pixel resolution, looking at how this affects the clarity of the image. Moving from black-and-white images, the students then use grids of colour...
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Scratch Beginners
This unit of six lessons does not assume any prior programming knowledge and covers the following guidelines in the National Curriculum:
- Design - write and debug programs that accomplish specific goals, including controlling or simulating physical systems; solve problems by decomposing them into...
Session 2: Bitmap Images
In this session you will look at how images are made on computers using picture elements or, more commonly known as, pixels. If you have access to a computer you can follow the computer based activity. If you do not then you can follow the unplugged activity. Either way you will begin a journey into understanding...
Session 3: Saving Bitmaps
In this session you will look at image resolution and how to work out the size of a file. In real life the digital images we take are ever increasing in size. This session will help understand how the size of an image is calculated and also what an image actually looks like to a computer.
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| Subject(s) | Computing |
|---|---|
| Age | 11-14, 14-16 |
| Published | 2010 to 2019 |
| Published by | |
| Direct URL | https://www.stem.org.uk/cx66z |
