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Justin Arnold's Shop

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Teacher of Computer Science and IT, providing a range of resources, mostly relating to computing, but many can be used in a cross curricular way and are designed to be easy to adapt.

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Teacher of Computer Science and IT, providing a range of resources, mostly relating to computing, but many can be used in a cross curricular way and are designed to be easy to adapt.
Internet Search Tips Poster
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Internet Search Tips Poster

(4)
A Nando's menu styled poster which provides top tips and advice on searching the web efficiently and effectively. I give copies of this to my students so it's ready to hand, but it's also a handy poster to refer to when helpful.
Making Connections Game - Cross Topic Revision Activity (Easily Customisable)
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Making Connections Game - Cross Topic Revision Activity (Easily Customisable)

(1)
This is an excellent little resource for getting students to make connections between topics and ideas which might not naturally occur to them, improving fluency and mastery within any subject. The idea of the game is simple: the teacher simply clicks the orange 'Go' button and the computer randomly selects two different words from a word list set by the teacher. The students are then challenged to devise a sentence which uses both of the two words in it, creating a connection between them. In some cases this may be easy ('input', 'mouse', but at other times they will have to extend their thinking to reach across apparently distinct topic areas to identify a connection or relationship ('binary', 'wireless'.) The game is very easy to customise. It consists of two files - a PowerPoint file, and a plain text file called 'words'. The plain text file called 'words' can easily be edited to contain any word list you choose, and is therefore both subject and topic independent. You could have several word lists prepared for different topics or classes, and just swap the 'words' file over when you need it. As long as the 'words' text file and the PowerPoint file are kept in the same folder, the game will work. The example provided contains a GCSE Computing keyword list, but this can easily be changed or adapted to suit your needs.
Number Grid (Conditional Formatting in Excel)
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Number Grid (Conditional Formatting in Excel)

(1)
Can be used either as a demonstration of an interactive number grid that show how number patterns can be represented by colours, or as a demonstration of how conditional formatting rules can be applied to a grid of cells. Change the two numbers on the left to see the grid update immediately, creating waves of colour.
Books Database (50 books)
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Books Database (50 books)

(1)
A sample database (Microsoft Access) for students to use, explore, test and extend. The database contains 50 of the most popular teen fiction books, with many different types of field included such as title, author, date published, number of pages, front cover image, blurb, link to Amazon etc. Two tables are included, one containing the books and the other containing reviews, so that cross table queries can be designed.
Real Logos Created in PowerPoint
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Real Logos Created in PowerPoint

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A selection of real logos, compared with re-created logos made entirely in PowerPoint using the Shapes tool. This was to demonstrate to classes how dynamic and versatile the shapes tool can be for creating logos and images.
Algorithm Demonstration
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Algorithm Demonstration

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A simple but effective introduction to the concept of algorithms. Students are shown a series of random numbers one at a time, and have to tell the teacher which is the largest number. They don't know the range, and they don't know the quantity of numbers. However, all students can do it, by quickly creating a set of simple rules to follow in their head - an algorithm. Without realising it they create a set of instructions to follow, they create a variable, and they carry out comparison tests. They use input, and output, and effectively demonstrate all of the attributes of a simple algorithm. This demonstration can then be used to introduce these ideas, and the whole concept of computational thinking.
Anti Gravity Connect 4 - Class Quiz
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Anti Gravity Connect 4 - Class Quiz

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I use this simple tool as a way of spicing up class quizzes. The class is divided into two teams - red and blue. One representative from each team comes up to the board. A third, independent student can be the quizmaster, or the teacher can fill this role. Each team is asked a question. If they get the question right then they can add one of their team's coloured tokens to the board by simply clicking where they would like to put it. No gravity with this version of Connect 4 - they simply need to make a row of four coloured counters in any direction. (Make it easier by limiting it to three, or make it much more interesting by making them try to make a row of 5 or even 6 counters.) The quizmaster simply needs to click the button in the top right corner to select which colour team is able to add a token to the board. Click a coloured token twice to reset its colour to white, or use the reset button at the top left to reset the whole board. Any questions, comments or suggestions welcome.
Binary Code Icon Worksheets (8 x Worksheets)
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Binary Code Icon Worksheets (8 x Worksheets)

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Fun, but challenging worksheets for students studying binary code and encoding bitmap images. Each of the 8 sheets includes both answer sheet and a worksheet. The answer sheet shows a set of 4 different 8 x 8 bit icons, with the decimal equivalent of the binary representation for each row shown on the left. Students need to convert the decimal value into binary, and then fill in the pixels for that row accordingly, eventually generating the icon image. With a set of 8 worksheets, each featuring 4 different images, this set provided 32 activities. Both student worksheets and clear answer sheets for the teacher are included.
Journey of an Email
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Journey of an Email

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PowerPoint Show (editable) with rehearsed timings and a video file format which show step by step how an email will travel around the world passing through various pieces of network equipment, networks, companies and even under the sea to reach its destination in seconds. Designed for a Year 8 class originally as a demonstration of a task the students then proceeded to try themselves.
Guess the Phrase Quiz - Networks
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Guess the Phrase Quiz - Networks

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Whole class activity based on the TV show Wheel of Fortune, with 10 words or phrases relating to KS3 Computer Networks for students to work out by guessing one letter at a time. Complete with clear graphics, easy controls, animation and audio.
Data validation & conditional formatting lesson
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Data validation & conditional formatting lesson

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This lesson teaches students to create what looks like an Amazon product page in Microsoft Excel, helping them to learn how to use data validation rules and conditional formatting rules. A teacher demonstration file is included, as well as two worksheets, and two student activity files.
Algorithmic Thinking
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Algorithmic Thinking

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PowerPoint presentation to introduce the idea of algorithms and computational thinking. Slides include practical exercises on computational thinking, and take students through the basic ideas through to representing algorithms using flow charts, and up to bubble sort algorithms.
Guess the Phrase Quiz - Computer Hardware
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Guess the Phrase Quiz - Computer Hardware

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Whole class activity based on the TV show Wheel of Fortune, with 10 words or phrases relating to KS3 Computer Hardware for students to work out by guessing one letter at a time. Complete with clear graphics, easy controls, animation and audio.
JavaScript Town Name Generator
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JavaScript Town Name Generator

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Simple website demonstrating how JavaScript can be used to generate random town names. This resource can either be given to students to disassemble and edit, or for the teacher to learn how JavaScript can be used in class to create a simple resource that students will enjoy.
JavaScript fantasy name generator
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JavaScript fantasy name generator

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Series of linked html files that allow students to either experience simple JavaScript functionality, or disassemble it or edit it for practice. Alternatively it could be used by the teacher as a demonstration, or broken down for students to rebuild.
Computer Networks
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Computer Networks

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Highly visual and very clear presentation introducing the concept of computer networks. Includes analogies that get children to think of road networks with traffic on them. Explains the differences between network topologies, as well as the concepts of LANs and WANs.
Interactive PowerPoint Exam (Produces Graded Certificate)
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Interactive PowerPoint Exam (Produces Graded Certificate)

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Originally developed to support the ECDL course, this is a 50 question on-screen interactive exam on using PowerPoint. Once launched the app will ask for the student's name, and then present them with fifty questions. Students respond by clicking on the correct part of the application. Once the exam has finished students are given an accurate percentage result, and a printable certificate that includes the name of the exam, their name, the date, and their final score.