Home Understanding DT The DT Curriculum Core concepts Data representation: Years 7–8

Data Representation Years 7–8

At this level, students investigate how digital systems represent text, image and audio data using integers. They explain how and why digital systems represent integers in binary.

Suggested activities

Introduction to binary

Use this lesson to reinforce and practice counting in binary.

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Binary bracelets

Create bracelets using the binary of letters in your name.

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ASCII and Binary Representation

Use this lesson to learn and practice converting text to binary with ASCII codes.

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Images and colours

Use the interactives in this online textbook segment to explore the binary bits used in raster images.

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Digital Compression

Watch this video for a basic intro on how digital text, images and audio are compressed to save bits.

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