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Data representation Images

This resource consists of 2 A3 Active Learning worksheets which could be used to either introduce and record information about data representation, or as a revision tool. There are plenty of activities across the two pages that would allow students to either recap work they have previously covered or to research...

Binary Data Representation

This resource looks at binary data and contains an Excel workbook with macros to enable recolouring/checking the colour of cells. A series of binary numbers are given in a rectangular grid of cells on the left when the workbook is first opened. Students are required to recolour the original binary grid, to show the...

Data Representation -Data Compression

This resource, aimed at lower ability Key Stage 4 students, introduces the concept of data compression, specifically Run Length Encoding. Students are asked to use an online tool to convert names into binary (ASCII), this binary data is then subjected to Run Length Encoding and encoded binary compared to the...

Data representation

This lesson consists of a presentation on Data Representation, looking at how binary numbers work (and concludes with an exercise in converting binary numbers to denary). Students consider primitive monitors with q bit colour depth, represented characters and other data. before investigating how coloured images are...

Digital Images

This short homework or worksheet activity describes how a bitmapped image has been stored in a file, including the encodings used in binary to represent the 4 colours which make up the image, and the height and width of the image. The data is all given in binary format. Students are then expected to recreate the...

How does a computer store an image? What happens if we decrease the quality of an image file? Can we recreate the original image if we decrease its' quality? Are there ways to reduce the size of an audio file without losing the quality of the audio when it is played back?Understanding data and how it is...

KS2 Data

Data: use search technologies effectively, appreciate how results are selected and ranked, and be discerning in evaluating digital content. Understand computer networks, including the internet; how they can provide multiple services, such as the World Wide Web, and the opportunities they offer for communication and...

Binary bracelets

This resource introduces binary data to students via the creation of bracelets which display their name in binary. This lesson helps to demonstrate how it is possible to take something that we know and translate it into a series of ons and offs (ones or zeroes). The resource contains a lesson plan and related...

Communications and networks unplugged

This resource focuses on the breadth and depth of the subject with a focus on networks and communications (with links to data and data representation) and an emphasis on understanding how this can be implemented in classrooms whilst taking into account progression through Primary education. It contains a series of...

Introduction to sound and music computing

A highly technical overview of how sound is represented in a computer, how digitising sound changes the quality of it and how reducing the sample rates can effect the resulting audio. The resource also comes with a number of sound samples to illustrate these concepts, along with both Python and Scratch programs to...

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