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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 values to represent colour pictures. The resource includes a starter activity, teacher-led learning activity and homework knowledge-consolidation task.
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