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Introduction to big data

A detailed presentation from Ben Houghton, data scientist at Barclays PLC. It is good introduction to Big Data and the three Vs (volume, variety and velocity). Other topics covered are machine learning and its use in fraud detection, legal and data privacy challenges and technology bottle necks caused by...

Databases unplugged

This report gives details of a series of computing lessons designed to relate fundamental concepts of database use and design to children in Primary and Secondary Education (ages of 6 to 16). The skills and concepts developed in these lessons begin at a very simple level but progress to cover abstract...

Modems unplugged - sound representation

All data on computers is stored and transmitted using the binary number system. When the binary digits need to be sent over the phone lines (which often happens in home internet connections), the digits are converted to sound and decoded at the other end using a modem. This activity uses audio coding similar...

Relational Databases -Santa's Workshop

A resource aimed at the various GCSE Specifications for Computing. Activities are broken down into 14 stages and will require students to create a Relation Database in Microsoft Access, containing data that Santa would find useful when creating his naughty and nice list. Students will need...

GCSE Computing Theory

A teacher produced workbook containing activities focused solely on database parts. The resource consists of a section on databases, a discussion of the pros and cons of flat file databases versus relational databases  which leads into how to create tables, insert data into them and then interact with them using...

GCSE Data Representation

A series of 20 activities related to Data Representation in the GCSE Syllabus. Activities include worksheets on Binary (including addition, shifting and conversions), character encoding systems, various aspects of how audio files are created and stored, Huffman Tree encodings, Denary and Hexadecimal conversions,...

Data representation and Binary Numbers

This resource contains a number of activities and worksheets to support the topic of binary numbers. The content looks first at binary numbers, how they represent denary numbers, converting between the two, binary addition and using two's complement to represent negative numbers and thus perform subtraction. These...

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...

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