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Computer Science teacher 20 years in school, college and University. Range of resources for all levels.

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Computer Science teacher 20 years in school, college and University. Range of resources for all levels.
Creating basic web pages using html styled with CSS
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Creating basic web pages using html styled with CSS

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A worksheet that guides students to create a web page using html containing headings, images, backgrounds formatted using (css) Cascading Style Sheets. Contains extension tasks and all images and code to create the page. Suitable for Year 8 and upwards. Each addition of code is colour coded to make it easier to follow each insertion and gradually develop and create a more complex web page
Year 8 Html and css revision
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Year 8 Html and css revision

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A resource that test basic understanding of html and css.Includes a missing word activity as an introduction and then students interpret html and css to work out the page that would be displayed. Suitable for Year 8 revision lesson. Students use Microsoft Word to type in answers.
Programming electronic circuits with Arduino and Tinkercad : Bundle of 9 Lessons
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Programming electronic circuits with Arduino and Tinkercad : Bundle of 9 Lessons

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Arduino - Yr 7 & 8 Technology, 9 & 10 Electronics, Design & Technology A range of worksheet activities with circuit diagrams and code covering Computer Science and Physics curriculum. Can be used to make programming more interactive / fun building practical systems. With links to all the Tinkercad devices for immediate / hassle free access : Arduino–Getting-started-with-TinkerCad-Simulation : how to build circuits, code 2.TinkerCad-Traffic-Light-Simulation : create own traffic light system. 3.Using Loops in programming the Arduino using Tinkercad : learn how to use for Loops 4.TinkerCad-Knight-Rider-Simulation : create iconic strobe effect with sound 5.TinkerCad-Parking-Sensor-Simulation with flashing leds and sounds and distance sensor 6.Tinkercad Night Light Simulation with LDR and push switch. Tinkercad Electronic Dice with Push button Tinkercad Creating and displaying characters using an LCD Includes a Summary of aims / learning for each lesson too. Over 60 pages of instructions / activities. If any of links to projects online do not open ( I update them every 30 days as they expire on the site) please email me : narud@outlook.com. Please let me now if there any other issues and give me feedback, so I can improve ( and you can download the improved versions).
Storing images - bitmaps resolution, bit depth, file size and file types
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Storing images - bitmaps resolution, bit depth, file size and file types

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A number of different worksheets covering how images are represented / stored digitally. Pixels, bit depth and calculating file size in bits and bytes. Includes practical activity for learners to create their own bitmap images including meta data. Used with Year 10 and 11 GCSE Computer Science Data Representation unit.
How Computers handle calculations : Binary Shift and Twos Compliment
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How Computers handle calculations : Binary Shift and Twos Compliment

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Worksheet that explains how computers are able to do calculations with negative numbers. Step by step explanation of 2s compliment is used, with easy to follow examples and practice questions. Worksheet that explains how Computers are able to do Multiplication and division, with easy to follow examples and practice questions.
Spreadsheet modelling in Excel : How to save up for a Playstation 4
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Spreadsheet modelling in Excel : How to save up for a Playstation 4

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Excel model used to allow students to see how spreadsheets can be used to plan how to earn enough pocket money within a given time. Used with year 7 and 8s . Great as an introduction to how Spreadsheet can be used to make preditions / financial planning. Fully updatable, allows student to investigate and adjust the number of jobs and money earnt in order to earn enough money to be able to afford the Playstation. Includes a number of different graphs and the scenario that the model is based on and explains how the model is used.
2.Using Tinkercad: Creating a Parking sensor for the Arduino and using For loops
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2.Using Tinkercad: Creating a Parking sensor for the Arduino and using For loops

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Resource shows how to build a circuit with leds, distance sensor and a buzzer using a breadboard and how to program using Arduino. Explains how distance ultrasound is used to measure distances in introduces a sequence of if statements to create a reverse parking sensor which uses sequence of lights and alternating tones from a buzzer to simulate a parking sensor using Tinkercad. Introduces for loops to control brightness of an led and changing the tone of a buzzer. Explains how Square waves can be used to output analogue data. Used for year 9 to make coding more engaging in preparation for choosing Computer Science at GCSE.
1.Using Tinkercad : Create and program with Arduino - Traffic Light  and Knight Rider strobe
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1.Using Tinkercad : Create and program with Arduino - Traffic Light and Knight Rider strobe

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A tutorial ( part 1 &2) showing how to use Tikercad to create circuits and program with the Arduino Microcontroller. A fun introduction to programming can be used for Year 8 to 11 learners. Used to practise circuit bulding and programming before building their own circuits using leds, breadboard and Arduino connected via usb to their computer. Used with Year 9 to introduce electronics and programming. Lesson 1 : Controlling an led Lesson 2 : Creating a Traffic Light Simulation. Lesson 3 : Creating a strobe light effect - Knight Rider car Tinkercad is great simulation program , students learn quickly and then are much more confident at to being able to take the exported code and build their own circuits. Makes it much easier to manage a class of 25 Year 9s all doing practical.
Lossless and Lossy  compression : making an Emoji
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Lossless and Lossy compression : making an Emoji

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Activity to create a Disney emoji bitmap image in excel to consider file size in terms of number of pixels, number of colours ; bit depth and looks at how to use a compression technique to reduce fiel size. Includes an exam question on lossy and lossless compression.
Binary Search in Python a Simple practical explanation
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Binary Search in Python a Simple practical explanation

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This resource includes a python program with a commentary and guide that shows exactly the steps a Binary search. GCSE computer science students often find it difficult to understand Searching algorithms. So I have written as basic a program to help explain how it works with full details of how each line of the algorithm works.Includes trace table and code allowing each variable value to be printed as each line is executed.
Properties of Sound : Sampling rate, bit depth, file size,  MP3 format
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Properties of Sound : Sampling rate, bit depth, file size, MP3 format

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A number of worksheet activities : 1.Investigating MP3 Compression: where learners chose different compression rates on a wav file to investigate fiel sizes and qualities using Audacity ( free sound editing software). 2.Sound and how to store it : introduces sound in terms of frequency and amplitude and how stored digitally. 3.Sound Revision Quiz : some basic understanding of sound properties are tested, bit depth, sampling rate and file size in bits and bytes 4.Sound in Binary : A research quiz to explain the basic key words / principals of storing sounds 5.Sampling Sound: A worksheet where learners can sample a wave to learn about sample rate, bit depth, denary value, binary values stored and file size in bits and bytes All answers provided to lessons are provided.
Relationship between Resolution,  File Size and Print size.
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Relationship between Resolution, File Size and Print size.

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A spreadsheet model to investigate Resolution and Size of image. Used with Year 9 and 10 GCSE Computer Science Data Representation unit. The user enters the maximum image size of their camera in MegaPixels and then selects the resolution of their printer and the spreadsheet works out the maximum print size possible
Learning to Code G Develop 5 :  Create a Platformer Game for Beginners
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Learning to Code G Develop 5 : Create a Platformer Game for Beginners

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Step by step guide for Beginners to create a Platformer Game using free online software G Develop 5. PowerPoints with over 75 slides of instruction. Source files for each lesson provided. Written to cover main aspects of Gaming so leaners learn the fundamentals and then can create their own more elaborate games. Games can be exported to be run using a browser. Lesson 1: Be able to: create and save a project add Objects from Assets page create platformer objects control platformer character with keyboard run and jump and animate the character turn and face direction it is running in create a global variable to store a Boolean value in order to control when Jump sound is played and be able to understand a flow chart to show this process Lesson 2: Be able to: “rip” music from YouTube to use as background music add Background music to game create Text Object to display Score on screen create collision events and score on screen using a score variable use ladders climb between platforms by adjusting collision masks Lesson 3: Be able to: use a timer to control enemy animation control Score when a correct player /enemy collision occurs reduce health if an incorrect player / enemy collision occurs lose lives if health goes to zero or player falls of platform place enemy back on stage to continue with game Lesson 4: Be able to: create a game over screen and display when Lives =0 create a spring-board to double jump to reach higher platforms extend game adding further objects and control camera to follow player work with layers to control position of Score, Lives and Health