This interactive presentation is suitable for the current GCSE specification, along with the new 9-1 curriculum. It allows students to click onto a section and revise for that specific area. There are 26 areas in total. Please see image for details of some of the keyword areas covered.

This lesson is about units of data storage and is designed to teach students about bits and how units are used to simplify file sizes. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with an answer sheet, custom exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included! Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best! Duration: 1 Lesson This resource is designed to cover: Units of data storage. Moving between different data units. Calculating required storage capacity for files. Why data needs to be converted to binary format. ⠀ Other complete lessons in Unit 1.2: RAM, ROM, and Virtual Memory (Primary Storage) Units of Storage (Current) Secondary Storage Binary Crash Course Representing Images Representing Sound Representing Characters Compression

Secondary storage can be a difficult idea to get your head around, but this complete lesson is going to change that! It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a flashcards worksheet with answers, custom exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included! Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best! Duration: 2-3 Lessons This resource is designed to cover: The need for secondary storage. Common types of storage technology: optical, magnetic, solid-state/flash. Advantages and disadvantages of storage technology. Characteristics of secondary storage technology: cost, capacity, speed, portability, durability, reliability. ⠀ Other complete lessons in Unit 1.2: RAM, ROM, and Virtual Memory (Primary Storage) Units of Storage Secondary Storage (Current) Binary Crash Course Representing Images Representing Sound Representing Characters Compression

Complete scheme of work for J277 OCR Computer Science 2.1 Computational Thinking, including PowerPoint for each lesson, homework sheets, worksheets, unplugged activities, Python example files, end-of-topic exam, and mark sheets. Designed for my mixed-ability group with lots of simple explanations; large clear and bright diagrams; chunked lessons; and stretch and activity tasks for higher-achieving students. Includes the following lesson PowerPoints and resources: Scheme of Work document 2.2.1a Variables, Constants, Operators, Inputs, Outputs, Assignments 2.2.1b Sequence, Selection, Iteration (inc Python files) - Updated October 2022 to include Python Switch (match) Statements 2.2.1c Arithmetic and Arithmetic Operators 2.2.2 Data Types (inc worksheet and Python solutions) 2.2.3a String Manipulation (inc Python solutions) 2.2.3b File Handling (inc Python solutions) 2.2.3c Databases and SQL (inc worksheet, answers, and Python SQLite 3 database file) 2.2.3d Arrays 2.2.3e Subprograms 3 x Homework worksheets and answers 1 x End-of-topic test Includes dozens of Python demonstration files and a Python-based SQLite 3 database for students to test their SQL commands. Save yourself hours of planning. Download now.

This teaches students how sound is is sampled and stored in a digital form along with what is sample rate, bit depth, and duration of sound files. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included! Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best! Duration: 1 Lesson This resource is designed to cover: Analogue waves. How sound is sampled and store in a digital form on a computer. Factors affecting sound quality: sample rate and bit depth. Calculating the size of sound files. ⠀ Other complete lessons in Unit 1.2: RAM, ROM, and Virtual Memory (Primary Storage) Units of Storage Secondary Storage Binary Crash Course Representing Images Representing Sound (Current) Representing Characters Compression

This resource covers the common ways vulnerabilities can be removed: penetration testing, anti-malware software, firewalls, user access levels, passwords, encryption, and physical security. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom-made exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included! Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best! Duration: 2 Lessons This resource is designed to cover: How network threats are limited. Common vulnerability prevention methods: Penetration Testing Anti-Malware Software Firewalls User Access Levels Passwords Encryption Physical Security ⠀

This teaches students about lossy and lossless compression, along with the need for compression, and the effect on files. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included! Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best! Duration: 1 Lesson This resource is designed to cover: Why compression is used. Lossy and Lossless compression. Scenarios where each type of compression may be used. Advantages and disadvantages of each type of compression - there is a worksheet task designed for students to obtain this information from the presentation. Effects on different types of files. ⠀ Other complete lessons in Unit 1.2: RAM, ROM, and Virtual Memory (Primary Storage) Units of Storage Secondary Storage Binary Crash Course Representing Images Representing Sound Representing Characters Compression (Current)

5 Computational thinking lessons for GCSE. Each lesson includes three levels of differentiation by task rather than outcome. Each lesson has an engaging starter activity that students can get on with straight away. The lessons were originally written to be used with exercise books as well as some computer based work but could easily be adapted to make them 100% computer based. The lessons cover abstraction, decomposition and algorithmic thinking. Programming opportunities are included (python) as well as links to identifying programming errors and flowcharts. Lessons include literacy and reading opportunities.

Complete unit of work for J277 OCR Computer Science 1.1 Systems Architecture, including PowerPoint for each lesson, two homework sheets, end-of-topic exam, and mark sheets. Designed for my mixed-ability group with lots of simple explanations; large clear and bright diagrams; chunked lessons; and stretch and activity tasks for higher-achieving students. Includes the following: 1.1.1a - Purpose of the CPU (including unplugged activity) 1.1.1b - CPU Components 1.1.1c - Von Neumann Architecture 1.1.1d - Factors Affecting CPU Performance 1.1.1e - Embedded Systems 2 x Homework sheets (10 marks each, plus answer sheet) End of topic test (designed to look like an exam paper, 25 marks, plus mark sheet) All lessons are tried-and-tested. Save yourself hours of work by downloading now. Save yourself weeks of planning by buying the Component 1 bundle at a reduced price!

Revision aid for students, list of all of the topic areas to revise for the GCSE OCR Computer Science exam with links to the BBC Bitesize page for each topic area. There is also a link to 2 past papers.

Activity Worksheet and Answer Sheet covering OCR Databases and SQL: Create Table Select Insert Delete Update Flatfile Database Relational Database Primary keys Private keys

This lesson teaches students about the internet: Domain Name Service (DNS), server hosting, the cloud, web servers, and clients. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom-made exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included! Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best! Duration: 1-2 Lessons This resource is designed to cover: The Internet: DNS, Hosting, The Cloud, Web Servers, and Clients. Purpose of the DNS. Purpose of the cloud. Interaction between clients and web servers. Different types of servers and the services they provide. Advantages and disadvantages of the cloud. ⠀ Other complete lessons in Unit 1.3: Types of Networks Network Performance Network Hardware The Internet (Current) Network Topologies Encryption (Free) Standards and Network Protocols Network Connections

Recently remade for J277! I have created revision cards for all topics in the OCR Computer Science GCSE (J277). These are used by my current Year 11 Cohort, they have found them quite effective as support tools in lessons and revision at home. I allow students to use them whilst answering question in lesson so that they are focusing on exam techniques whilst absorbing the subject knowledge too. I have created a revision wall by printing each card in A3 and arranging it on the wall. Students can consult the wall if they are stuck. All the cards have been designed to be printed double sided on the short edge, This is so that the topic name is on the back. All cards are using the ‘OpenDyslexic’ font, this can be seen on the PDF’s. Formatting may differ on the publisher document if you do not have the font installed. This pack consists of the original publisher file as well as a PDF of all the cards too. I have also created a PDF of each set of cards that represent each separate paper of the OCR course. Enjoy! UPDATE# I have added the Pseudocode Programming Techniques page, to match up with the Question Cards

Computer Science OCR GCSE J277 revision grids for all topics of the course. Each sheet covers a different topic of the course and has a A3 template to print and give to students to fill in for their revision. Covers all topics for both Unit 1 and Unit 2.

DESCRIPTION Drawing on my experience as a student who achieved an A* in GCSE Computer Science, and who continues to study computing at a college level, with an extensive analysis of notes, mark schemes and examiner reports, I’ve created a revision booklet that cover every expectation for the Computer Science subject on the Edexcel (and some OCR) specification. These notes are presented in an easy-to-use revision note, then question format. Colour coding, diagrams and a simple layout makes learning easy. Having refined these over my final years in high school, I’ve seen first-hand the results they can achieve. I’m confident that they will be an invaluable tool to you. TOPICS INCLUDED (ANALYSIS & INFORMATION) Logic and Truth Tables Programming Languages Binary Systems Data Representation Computer Networks Software Development Data Storage & Compression Network Security & Cybersecurity Computer Hardware Programming Theory Ethical, Legal, and Environmental Issues

Complete scheme of work for J277 OCR Computer Science 2.4 Boolean Logic, including PowerPoint for each lesson, homework sheet, worksheets, end-of-topic exam, and mark sheets. Designed for my mixed-ability group with lots of simple explanations; large clear and bright diagrams; chunked lessons; and stretch and activity tasks for higher-achieving students. Includes the following lesson PowerPoints and resources: 2.4.1a Logic Diagram and Truth Tables 2.4.1b Logic Circuits 2.4.1c Solving Problems 1 x Homework sheet plus answers End-of-module test paper plus answers Save yourself hours of planning. Download now.

Revision sheets for the representation of data topic GCSE Computing OCR Feedback welcome before I complete other topics

A checklist i gave to my students to help them cover the key aspects of the specificiation. They tick each box as they go along and feel confident in that area. A good tool to locate weaknesses and improve!

This lesson teaches students about how and why encryption is used. It has been specially created for the OCR GCSE Computer Science (J277) course, meaning there is no irrelevant content from other exam boards. This resource consists of a PowerPoint presentation, a worksheet with answers, custom-made exam-styled questions with a mark scheme, and a full lesson plan. See the video and the preview image to see what is included! Feedback has been considered when creating and updating this resource to ensure it is appealing, engaging, and challenging. This resource will be updated to ensure it is (one of) the best! Duration: 1 Lesson This resource is designed to cover: How encryption is used to secure data. ⠀ Other complete lessons in Unit 1.3: Types of Networks Network Performance Network Hardware The Internet Network Topologies Encryption (Current - Free) Standards and Network Protocols Network Connections

Covers all of the items from the specification in section 2.1 computatonal thinking,abstracton, decompositon, algorithmic thinking, standard searching algorithms, binary search, linear search, standard sortng algorithms, bubble sort, merge sort, inserton sort,how to produce algorithms using, pseudocode, using flow diagrams,interpret, correct or complete algorithms. And Trace Tables. Workbook includes coded python activities. I have added the code for these, and answers to questions, into the notes sections at the bottom of the slides, you may want to remove these before sharing with students. I could do with some feedback.