A complete KS3 scheme of work, including how computers process and store binary, conversion to denary, binary addition, bitmaps, vector graphics, and sound. Full of activities, discussions, and games especially written for years 7 to 9, and with all answers provided, this is an ideal introduction to key concepts to prepare and inspire your students for Key Stage 4. Lesson 1: Binary to denary conversion + worksheet Lesson 2: Denary to binary conversion + worksheet Lesson 3: Binary addition and terminology + worksheet Lesson 4: Character sets + worksheet Lesson 5: Bits and pixels (bitmap and vector graphics) + worksheet Lesson 6: Bits and sounds + worksheet A fun scheme of work for students, easy-to-deliver for teachers. My students thoroughly enjoyed it, I’m sure yours will too. Download today.

Save planning time and boost student confidence with this comprehensive GCSE Computer Science Data Representation Revision Book. This revision workbook is designed to help students develop a secure understanding of Data Representation. It is ideal for use in the classroom, intervention sessions, homework, independent study and exam preparation. Designed to be printed and written in, the workbook encourages active revision through note-making, highlighting and retrieval practice, helping students retain key knowledge in preparation for their GCSE examinations. Suitable for OCR GCSE Computer Science (J277) AQA GCSE Computer Science Edexcel GCSE Computer Science Other GCSE Computer Science specifications covering Data Representation Resource Includes: Clear explanations of key concepts Colourful diagrams and visual aids Worked examples Retrieval and recap activities Practice questions throughout Space for students to add their own notes Topics Covered: Binary Number System Denary, Binary and Hexadecimal Conversion Binary Addition Units of Storage Character Sets (ASCII and Unicode) Images and Colour Depth Image Resolution Sound Sampling Compression Data Storage Exam terminology and key vocabulary

These PowerPoints form full lessons of work that together cover the new A level Maths course for all exam boards. Together all the PowerPoints include; • A complete set of notes for students • Model examples • Probing questions to test understanding • Class questions including answers • Individual whiteboard work • Links to exercises in ‘The Textbook by CGP’ these can easily be edited for your textbook The PowerPoints can be used in the lesson and also given to students that have missed a lesson Sampling, data representation, averages and spread covers; Understand and use the terms ‘population’ and ‘sample’ Use samples to make informal inferences about the population Understand and use sampling techniques, including simple random sampling and opportunity sampling Select or critique sampling techniques in the context of solving a statistical problem, including understanding that different samples can lead to different conclusions about the population. Interpret diagrams for single-variable data, including understanding that area in a histogram represents frequency Connect to probability distributions Interpret measures of central tendency and variation, extending to standard deviation Be able to calculate standard deviation, including from summary statistics

This worksheet introduces sound to the students. They’re expected to answer a series of questions which talk about analogue sound, bit rate and bit depth. There are questions included which build on knowledge that they may have previously covered. For example, ASCII and Unicode. There are also questions about lossless and lossy compression included which support the need for compression on files.

this bundle contains a number of lessons and worksheets on the topic of Data & Data Representation, while also including aspects of programming and digital graphics

This is a computer science lesson without a computer. This is for KS3 students, and would be great as a cover lesson, a homework or for when a student needs to work elsewhere and you need a quick alternative lesson. This worksheet is 4 pages long, has some information and 3 tasks and an extension activity to complete. I have included teacher answers for non-specialists who may be covering your lesson, or for students to self and peer mark.

This is a 24 page booklet, with examples and activities for pupils to practice their data representation. This can be set as a homework for each topic too. It includes the following topics: Binary to Denary Denary to Binary Binary to Hexadecimal Binary Addition Overflow Logical Shifts Arithmetic Shifts Sign and Magnitude Two’s complement Data Storage Calculate file sizes Images Pixel Resolution Colour depth No. of bits required for certain values Please leave a review on how it can be improved too.

This is a booklet for students to work on. It has 23 pages filled with examples and practice questions. The topics include: Binary to Denary Denary to Binary Hexadecimal to Binary Sign & Magnitude Two’s complement Binary Addition Binary Shifts Logical shifts Arithmetic Shifts Overflow Data representation Calculate file size Calculate image size

In this Unit of work you will find the binary data, binary addition, Hex and ASCII lessons. It includes presentation slides, work booklet, HW sheets and assessments.

Are you looking for a robust, ready to use summative assessment to test your students understanding of data representation? Computers science teachers have been left in a wilderness, without a rigorous, fair and consistent way to test your student’s knowledge in key stage 3 … UNTIL NOW! WHAT IS TESTED? This written test has been carefully mapped to the UK’s Computing At Schools (CAS) Progression Pathways. It includes a mixture of multiple-choice, short answer and long answer questions. This assessment covers the following CAS Progression Pathway descriptions: Performs more complex searches for information e.g. using Boolean and relational operators. Analyses and evaluates data and information and recognises that poor quality data leads to unreliable results, and inaccurate conclusions. Knows that digital computers use binary to represent all data. Understands how bit patterns represent numbers and images. Knows that computers transfer data in binary. Understands the relationship between binary and file size (uncompressed) Defines data types: real numbers and Boolean. Queries data on one table using a typical query language. Understands how numbers, images, sounds and character sets use the same bit patterns. Performs simple operations using bit patterns e.g. binary addition. Understands the relationship between resolution and colour depth, including the effect on file size. Distinguishes between data used in a simple program (a variable) and the storage structure for that data. . The test lasts 50 minutes. WHO IS THIS ASSESSMENT FOR? This test is paper 1 and has been written for year 7. HOW DO I USE THE ASSESSMENT? This assessment is super easy to use. Simply print out the question paper and give to your students. It is better to run this assessment in class rather than as a homework task to ensure reliability. Students complete the test on paper. HOW IS THE ASSESSMENT MARKED? You mark the papers yourself but don’t worry, you get an easy to follow mark scheme and can even watch the helpful video which shows you exactly how to mark it. HOW IS THE ASSESSMENT GRADED? Included in the resource is an Excel spreadsheet. Once you enter the marks onto the spreadsheet, it will automatically show you the total marks, the grade (A* to U) and if they have met expectations, are above expectations or are below expectations to help you with report writing. You also get a summary showing you how well the CAS Progression Pathways have been answered by your students to help you with future planning. This simple, easy to use summative assessment paper provides you with useful feedback your senior leadership team will love. Download it now to add it to your teacher toolkit.

Escape room activities that are the perfect supplement for any computer science course! An interactive escape room lesson that introduces students to the topic of data representation. There are six fun task cards that include activities relating to the different types of data storage. Lesson Objectives: • To be able to describe what is meant by data representation. • To be able to work out which type of data is being represented. Included: Six task cards PowerPoint with starter and plenary Lesson Plan Answer sheet for teacher Answer sheet for students

This unit is a great start to the basics of Computing. Once students have learnt the basics listed in the lessons below they then take two test papers for assessment throughout the unit (test papers and answers provided). An overall assessment checklist is provided for both student and teacher feedback. Please also view my ‘Year 7 Computing’ resources, this Year 8 program is a great follow on. Lesson 1 Computer Systems: how a computer system works, input and output devices Lesson 2 Computer Systems: Hardware (internal and external), Software (applications, systems and utility) Lesson 3 Storage devices and capacity Lesson 4 Binary Code 1 (binary to denary, using the ASCII table) Lesson 5 Binary Code 2 (decoding and problem solving) Lesson 6 Databases (introduction and data entry) Lesson 7 Revision - (produce a revision guide on the above) Lesson 8 Test Paper 1 Assessment Lesson 9 Databases (2) Queries e.g. Boolean Operators Lesson 10 Networks (types of networks and topologies) Lesson 11 Feedback and Improvement Lesson (answers provided to students on PowerPoint). Lesson 12 Revision Lesson 13 Final Cycle Assessment Test Paper 2

This is a written test about how data is represented in a computer system. It includes questions on binary, denary, hexadecimal, binary addition, logic gates, truth tables, ASCII, bitmaps and vector images and machine code. Suitable for GCSE Computer Science classes and KS3 Computing classes. A useful revision tool to help GCSE pupils recognise gaps in their knowledge. The test takes most students around 25 - 30 mins to complete. FREE BONUS PRODUCT INCLUDED As a special thank you for purchasing this product I am pleased to be able to also include a surprise FREE bonus gift. This gift is one of our complete resources which we will usually charge full price for but is yours absolutely free when you purchase this product. Just our little way of saying thank you to our valued customers. I hope you enjoy it and get use out of it, with my compliments.

A great introduction to understanding how text, images and sound are saved as binary. These ready to use data representation lessons will save you hours of preparation and can easily be adapted to meet your own requirements. WHAT IS INCLUDED? In this unit you have 3 ready-to-use lessons: ASCII characters Bitmap images Sound . Everything you need is included such as: a very high-quality accessible PowerPoint presentation for every lesson that effortlessly leads the teacher through the lesson and includes all the answers to the many questions and tasks the students need to complete a 2-sided editable worksheet for every lesson an easy-to-follow editable lesson plan for every lesson . PRIOR LEARNING This unit does expect pupils to be familiar with binary and in particular know that: Computers store numbers using binary. Binary can only contain 1s and 0s. A single binary digit is a bit. They can translate denary numbers into binary and binary numbers into denary by working out the column headings. . If your students are unfamiliar with these concepts, I highly recommend purchasing my 2 lesson unit called “Understanding Binary” which covers all of these topics and will ensure your students are ready for this unit. Many teachers purchase both units (Understanding Binary and Data Representation) together and run them as a single 5 week unit as they complement each other so well. EASY TO USE These ready to use resources are so straightforward that although I have included a lesson plan, most teachers can teach straight from the PowerPoint presentation without any further assistance. And best of all, the answers are included saving you time and energy. This makes these lessons suitable for experienced computing specialist teachers along with non-specialists and early career teachers (ECTs). EDITABLE RESOURCES I understand that teachers want to adapt their resources, so I’ve made the bold decision to make these resources editable. Therefore, if you need to use a particular template style for your school,or if you have students with specific educational needs, you can change the lesson to suit them. It gives you the flexibility to alter the lessons to suit your own particular needs. SCIENTIFICALLY PROVEN TEACHING TECHNIQUES These teaching resources have been specifically designed to aid pupils using educational psychology backed theories including dual coding, Mayer’s theory and the best techniques to alleviate cognitive load. Your students will have a higher retention rate, better and deeper understanding of the subject matter and will build their confidence in a natural way which reduces distractions and helps them focus on the learning. These lessons are highly interactive and engage students straight from the start. Just click on the BUY NOW button to download them straight away. You’ll wonder how you ever managed without them.

This unit covers Data Representation & Computer Architecture for N4 é N5. It covers: Binary Units Bin to Den and Den to Bin conversion ASCII Bit-Map Storage and Calculations of File Size Vector Graphic Storage Machine Code Computer Architecture (memory, processor components, buses, addressibility) é Interfaces Three calculation sheets accompany the unit. For access to all the files send me a message with your e-mail address and I’ll register you for the Dropbox they’re stored in. Please leave feedback. G Reid

Data Representation , intended for the OCR exam board, GCSE. Covers the main aspects of section 4 for paper 2. Two full A3 sides, picture only shows one side.

DATA REPRESENTATION IGCSE /O LEVEL COMPUTER SCIENCE

For ICT students A simple notes on data representation

Binary, Denary & Hexadecimal – Interactive Teaching Tool Demonstrate number representation with this free, interactive tool for GCSE Computer Science. Designed for teachers to use on an interactive whiteboard or projector. Six teaching views: Binary place value: toggle eight bits and watch a large denary total and the working update instantly. Denary to binary: step through each place value, showing why we write a 1 or a 0, with subtraction and a remaining total. Binary to hexadecimal: enter an 8-bit binary number and convert each group of four bits into a hexadecimal digit. Denary to hexadecimal: demonstrate division by 16, using the quotient and remainder to form the answer. Binary addition: enter two 8-bit binary numbers and work through each column, including carries and overflow. Binary shifts: demonstrate logical left and right shifts, showing zeros entering and bits being discarded. Full-screen Board mode automatically scales the demonstration to fit your display. Step controls, clear explanations and answer-reveal options let you pause for questions and predictions. Uses 8-bit unsigned values, making it suitable for introducing concepts, whole-class explanations and GCSE revision. Easy to use: download the HTML file and open it in a modern browser. No installation, internet connection or account is required for the teaching tool.

A powerpoint covering all points linked with Data Representation on the AQA GCSE Computer Science Specification (2014)