KS3 / GCSE Computer Science "Spot the mistakes" task for the Hardware and Software topics. Students must read a short piece of text and identify the mistakes. Handy to check understanding as a starter or plenary. Covers the basics of input, output, storage, and types of software. One PowerPoint contains the two questions, each with the plain text, a slide highlighting the mistakes, and a slide showing the correct answers. This is useful for displaying on a projector. The second PowerPoint includes just the questions and is useful for students working independently with the resource on a VLE. Fully editable resource.

Crosswords for GCSE Computer Science topic Networks. Answer key included. Printable PDF. Great for starters and plenaries. A pack containing crosswords and answers for 13 Computer Science topics is available on TES: Hardware Software Binary (answers in binary only) Binary inc negatives (answers in binary only) Binary and Hexadecimal Data representation CPU architecture Programming languages Networks The Internet Network security Algorithms Programming

KS3 / GCSE Computer Science "Spot the mistakes" task for the topic Data Representation. Students must read a short piece of text and identify the mistakes. Handy to check understanding as a starter or plenary. Covers binary, hexadecimal, and text, image, and sound representation. One PowerPoint contains the three questions, each with the plain text, a slide highlighting the mistakes, and a slide showing the correct answers. This is useful for displaying on a projector. The second PowerPoint includes just the questions and is useful for students working independently with the resource on a VLE. Fully editable resource.

GCSE Computer Science word search without clues, covering the CPU. Word searches without a list of key words force pupils to think harder about the topic and the related technical terms. These are useful as starters to test prior learning, as plenaries, or activities to revisit over a series of lessons for evidence of progress.

Keyword bingo game covering computer hardware. The teacher reads the clues; students must cross off the relevant keyword if they have it. The game ends when a student has all clues crossed off or achieves a straight line - you decide. Includes a set of 30 unique bingo cards for students, plus clue and definition list for the teacher. Fully editable resource.

7 questions written in Edexcel style pseudocode. Questions cover tracing output, identifying common logic errors in algorithms, and making corrections. Separate answer sheet included. Fully editable resource.

Full lesson - What’s Inside a Computer? Following on from lesson 1, this lesson covers the processing steps that take place inside common examples of computer systems. Includes teacher’s PowerPoint, activity, and plenary. Homework crossword (with separate answer sheet) included. Fully editable resource.

A revision worksheet for GCSE Computer Science covering: Denary, binary, and hexadecimal conversion Binary arithmetic (addition, subtraction) Binary shifts (arithmetic and logical) Overflow Negative numbers (sign and magnitude) one’s complement, two’s complement) Exam style questions (total 48 marks). Each of the 11 objectives at the top of the sheet is accompanied by links to online revision resources for that concept. Fully editable resource. Separate answers sheet included.

Two worksheets covering negative binary numbers in sign & magnitude and two’s complement representations. Each worksheet has a separate answer key. Fully editable resource.

Full lesson - The Internet and WANs. This lesson builds on the previous introduction to networks and introduces the concept of WANs and the Internet backbone. It covers the implications that the Internet’s structure has for reliability and security. Includes starter activity, teacher’s PowerPoint, activities, and homework. Answers are provided for all activities and homework. Fully editable resource.

A fill-in-the-gaps activity for students to improve their understanding of computer system components. Students must complete the tree diagram, which includes hardware (input, output, storage, and processing) and software (application software and operating systems). Useful as a lesson plenary or an end of topic summary. Suitable for KS3 or GCSE Computer Science. Fully editable resource. Includes tree diagram with gaps and the solution.

Three Boolean logic worksheets with exam style questions on logic statements and truth tables. 22 questions in total. The worksheets cover AND, OR, and NOT gates. Answer sheets included. Fully editable. Good for homework assignments.

Full lesson - Introduction to data representation and binary numbers. This lesson introduces the concept that everything in a computer is represented as binary, explains how binary works, and covers binary to denary conversion. Includes teacher’s PowerPoint, activities, and homework (with solutions). Fully editable resource.

Crosswords for 13 GCSE Computer Science topics, plus 3 bonus ’Mega crosswords’ containing over 40 clues each. Answer keys included for all crosswords. Each crossword is a PDF that can be printed. Great for starters and plenaries. (Two samples are also available on TES for free). Pack contains the following crosswords (plus answers for each): Hardware Software Binary (answers in binary only) Binary inc negatives (answers in binary only) Binary and Hexadecimal Data representation CPU architecture Programming languages Networks The Internet Network security Algorithms Programming

Full lesson - Introduction to representing negative numbers in binary. This lesson recaps binary representation and then introduces negative numbers. To aid understanding of two’s complement, binary addition is also covered. Both sign and magnitude and two’s complement are covered, with worked examples, exercises, and an explanation of the problems with sign and magnitude notation. Includes teacher’s PowerPoint, activities, and homework (with solutions). Fully editable resource.

Full lesson - Introduction to hexadecimal. This lesson recaps binary representation and then introduces hexadecimal. The lesson covers conversion between denary and hexadecimal, binary and hexadecimal, and vice versa. Includes starter, teacher’s PowerPoint, activities, and homework (with solutions). Fully editable resource.

Crosswords for GCSE Computer Science topic ‘binary’, also suitable for years 8 and 9. Answer key included. Printable PDF. Great for starters and plenaries. A pack containing crosswords and answers for 13 Computer Science topics is available on TES: Hardware Software Binary (answers in binary only) Binary inc negatives (answers in binary only) Binary and Hexadecimal Data representation CPU architecture Programming languages Networks The Internet Network security Algorithms Programming

Full lesson - primary storage devices including starter, teacher’s PowerPoint, and homework task. Following on from lesson 4, the main activity is the creation of a graphical summary sheet that shows the different types of storage and their relationship to each other. Fully editable resource.

Two homework sheets on low level languages. The first compares the key features of low level languages and high level languages. The second focuses on suitability of languages for particular tasks, and includes some exam style questions. Both include separate answer sheets. Useful as homework tasks, classroom tasks, or revision work. Can be used in conjunction with my Low level programming languages lesson. Fully editable resource.