Hero image

Raymond Chambers's Shop

Average Rating3.16
(based on 21 reviews)

My name is Ray Chambers. I'm a specialist in computing and have a first class honours degree in computer science. I'm currently the lead teacher of computer science at Brooke Weston Academy in Corby Northamptonshire. I have been teaching for roughly 8 years and I thoroughly enjoy my job. In 2015 I was fortunate to win the Pearson National Teaching Award for innovative use of technology. I also won the BAFTA for mentoring young coders.

100Uploads

41k+Views

9k+Downloads

My name is Ray Chambers. I'm a specialist in computing and have a first class honours degree in computer science. I'm currently the lead teacher of computer science at Brooke Weston Academy in Corby Northamptonshire. I have been teaching for roughly 8 years and I thoroughly enjoy my job. In 2015 I was fortunate to win the Pearson National Teaching Award for innovative use of technology. I also won the BAFTA for mentoring young coders.
OCR - AS-Level - Computer Science - Data Structures
r_chambersr_chambers

OCR - AS-Level - Computer Science - Data Structures

(0)
This topic introduces data structures such as: - *Arrays *Stacks and Queues *Records *Lists *Tuples There are over 22 slides with some code for algorithms to support how stacks and queues work and how they check whether the queue is full. It should help your students understand the different data structures used in computer programming.
OCR - AS - Computer Science - Logic Gates - Boolean / Karnaugh / Kmaps
r_chambersr_chambers

OCR - AS - Computer Science - Logic Gates - Boolean / Karnaugh / Kmaps

(0)
This set of slides is over 45 slides long. It introduces the basic logic gates and basic boolean algebra. It shows how to simplify boolean. There are over 45 slides showing K-Maps / Karnaugh Maps and they show how you can spot the patterns and show what the answers should be. At the end of the slide there are two links to YouTube videos I have made of these slides showing it being taught. It should have a break down of some computing problems which should help you.
OCR Computer Science - Computer Science PseudoCode 9-1 1-9
r_chambersr_chambers

OCR Computer Science - Computer Science PseudoCode 9-1 1-9

(0)
This lesson will show students how they can use the following techniques with pseudo code. Arrays Concatenation Substring Variables Upper Lower Multidimensional Array There is a worksheet attached with answers and it should give them two lessons to try different code. I hope that this is useful for computer science students
OCR - A-Level Computer Science - Floating Point Binary Questions
r_chambersr_chambers

OCR - A-Level Computer Science - Floating Point Binary Questions

(0)
This resource has picked exam questions and it goes through where the marks are gathered. There are 24 slides going through the questions one by one with the answers. There are bullet points to show students where they would gather the marks. I used this for a revision lesson with my students and it helped them further their understanding by seeing where the exam board would award marks. I took questions out of the old computing spec and put these together for the AS/A-Level students.
Big O Notation - Computer Science - OCR A-Level
r_chambersr_chambers

Big O Notation - Computer Science - OCR A-Level

(0)
A Powerpoint presentation explaining Big O Notation. There are some examples of code and some graphs which help students visualise what is meant by exponential and the complexity of algorithms. This was useful to my year 13 students and hopefully it will help yours.
Computer Science 1-9 - Networks Introduction - Topologies, Wifi and Encryption
r_chambersr_chambers

Computer Science 1-9 - Networks Introduction - Topologies, Wifi and Encryption

(0)
Objective: - We’re learning to identify different network infrastructures and the encryption involved. During this lesson there are some videos to break up the lesson and teaching notes for you to have a look at. On top of this there are some activities for them to try such as creating their own encryption key. This usually makes the lesson more engaging for the students. Content covered in this lesson: - Topologies Ring Star Bus Mesh Students to draw the network topologies and explain the advantages and disadvantages. Wifi and wifi channels Encryption using the Caesar shift and also comments on brute force. Public and private keys used in encryption.
A-Level Computer Science - Floating Point Binary Test with Answers
r_chambersr_chambers

A-Level Computer Science - Floating Point Binary Test with Answers

(0)
I have used the last 4-5 years of A-Level computing questions to find questions on floating point binary. I have compiled them in a 50 mark test which will test the students on their ability to do the following: - - convert from denary to binary - convert from denary to floating point binary - convert from floating point binary to denary - normalise floating point binary - compare floating point binary numbers to check accuracy Answer sheet has been provided against the spec so that you can see where it's possible to gain marks. I used this against the current grade boundaries to assess where they're currently at.
Python - User Interface Programming - GCSE / AS / A - Level - Tkinter
r_chambersr_chambers

Python - User Interface Programming - GCSE / AS / A - Level - Tkinter

(0)
This is a series of 3 activities which introduce the user interface library tkinter to students. It helps them build a simple user interface that looks at a text file. The first worksheet introduces them to text boxes and buttons. This is fairly straight forward. The second activity starts building a simple database using a text file that will read and write information. The third activity builds on task two and shows how to navigate back through the records and it allows the student to delete a record from the text file. It allows people to add more records to the file but it also allows people to read information from a file. This the basis for building on and using an actual database later on. There are some final solutions attached through the zip files which will help you on your computer.
Object Orientation - OCR - Alevel - Python - Package
r_chambersr_chambers

Object Orientation - OCR - Alevel - Python - Package

(0)
This package includes 3 powerpoints that introduce object orientation to students. On top of the object orientation powerpoints, there are worksheets that help students build on the skills that they have learnt. The first activity sheet shows how to set up a class in python and how to call on it. The second shows how to pass parameters into your class using constructors. There is theory supported in the powerpoint. The third lesson shows how to design a class and is a good introduction to class diagrams.
OCR - A-Level - Computer Science - 1.3.2 - Characteristics of networks (Part 1)
r_chambersr_chambers

OCR - A-Level - Computer Science - 1.3.2 - Characteristics of networks (Part 1)

(0)
1.3.2 - Characteristics of networks and the importance of protocols and standards. This lesson is the first part to two lessons on section 1.3.2 of the OCR syllabus. The lesson starts off with some questioning on the CPU which was the topic I covered with students in their recent lesson. Check the PowerPoint notes. Slide break down: - Slide 1 - 4 - We’re learning to explain the characteristics of Networks and the importance of protocols and standards - Learning objective and questions. Asks students what a network is. Slide 5 - A video explaining why we need networks. Slide 6-8 - Explains what is meant by a network. Explains what a LAN and WAN is and uses key points from past computing exam papers to give students what the mark scheme would look for. Slide 9-13 - Looks at different transmission media. Gets students to understand copper and fibre optic. Slide 14 Students share what they did for homework. Slide 15 - 25 Explains topologies and includes a video. Their are unplugged activities which get the students to become the network. Final Activity included
1.1.1 - CPU - EXAM QUESTIONS -  OCR - AS Level / A Level Computer Science
r_chambersr_chambers

1.1.1 - CPU - EXAM QUESTIONS - OCR - AS Level / A Level Computer Science

(1)
This is an assessment with answers including the structure and function of the processor. It includes: - (a) – The Arithmetic and Logic Unit; ALU, Control Unit and Registers (Program Counter; PC, Accumulator; ACC, Memory Address Register; MAR, Memory Data Register; MDR, Current Instruction Register; CIR). Buses: data, address and control: How this relates to assembly language programs. (b) – The fetch-decode-execute cycle, including its effect on registers. (c) – The factors affecting the performance of the CPU, clock speed, number of cores, cache. (d) – Von Neumann, Harvard and contemporary processor architecture.
Bitwise Operators - A-Level Computer Science
r_chambersr_chambers

Bitwise Operators - A-Level Computer Science

(0)
This task is a worksheet which explains the rules for bitwise operators and it explains some situations of where you might use it. On top of this it gives you a number of questions with an answer sheet which will help support your lesson. It explains the rules of AND, OR and XOR which are on the OCR A-Level Computer Science Syllabus.
Binary Subtraction - OCR - A-Level
r_chambersr_chambers

Binary Subtraction - OCR - A-Level

(0)
This activity sheet breaks down how you can subtract binary numbers. It comes with the entire answer sheet and also shows candidates how to subtract in a step by step walk through. It talks about how you flip the bits and work out your answer. The answer sheet is clear and coloured so that you can spot the answers.
OCR - 1-9 Computer Science - Legislation Practice Questions
r_chambersr_chambers

OCR - 1-9 Computer Science - Legislation Practice Questions

(0)
These questions will help your students with answer exam style questions on legislation. 8 Pages including an activity sheet and some exam questions I would include on an enable table in the corner of the room. Usually these questions are broken down into essay style questions. There is advice on how to answer these as well as past exam questions. There are some simplified questions for students who will be working towards a 5-7 but then I've included some top end work. Acts covered include: - * Computer Misuse Act * Freedom of information Act * Communications Act * Data Protection Act * Creative Commons * Copyright Designs and Patents Act
Python - Year 8 - Assessment
r_chambersr_chambers

Python - Year 8 - Assessment

(0)
This is a differentiated assessment which includes old national curriculum levels. You can map these to your new school levels or progress measure quite easily. I've split it into three tasks which are all slightly different. You may use these in any way you like. The idea is that they create a quiz. Some students who are on the red task will need to make sure that they go and try some research in order to understand how a binary search would work in Python. This is why it's a higher level. Students will need to be independent on some of these tasks. I found this useful for my own teaching and it meant that the students who were lower at coding could try the lower task. In terms of challenging students, if I knew that students of higher ability would try and pick the lower tasks, I would allocate them myself. Green (easy) Amber/Orange (medium) Red (hardest) Feel free to modify.
OCR - 9-1 - Computer Pseudo worksheet questions
r_chambersr_chambers

OCR - 9-1 - Computer Pseudo worksheet questions

(0)
This work sheet is a number of questions including extension activities that will get students to program pseudocode on paper. The first part of the work sheet includes some basic questions as well as some answers on an answer sheet. It should be some good practice for the basics of pseudo code. The extension questinos are more complicated and should be done on a separate sheet or work book as practice for the students.
Micro:bit - Sample Video - Iteration
r_chambersr_chambers

Micro:bit - Sample Video - Iteration

(0)
This video is a sample of what you will see in the bank of 9 videos which will help your students get started with the Micro:bit. I hope this is useful and that the other videos will get your students started. This video shows you how to get a light moving left and right using iteration.
Key Stage 3 - Networks Lesson 2 of 6 : - Connectivity
r_chambersr_chambers

Key Stage 3 - Networks Lesson 2 of 6 : - Connectivity

(3)
Connectivity This lesson introduces students to how we connect to the internet and introduces them to terms such as I.P address and explains what happens with traffic. They're introduced to the number of devices which are available and have to do some independent research. They're also given the opportunity to set up a blog in which they can share all of their work their teachers. If you're un-happy for your students to blog, you could always keep a progress log. The blog was used as an e-safety tool and the teacher was able to explain how to post responsibly during lessons. •Week 2 - What is connectivity Objective: - •Learn the meaning and significance of bandwidth •Understand what is meant by buffering Task 1 : - www.submarinecablemap.com/ 1.There are a number of countries which only have 1 cable connecting them to the remainder of the world. Create a Word Document and take some screen shots of these. 2.What do you think would happen if they lost their internet connection 3.Some countries have multiple connections, what would happen if one of their connections broke? Explain your reasoning. Task 2: - Using the shape tools in word, draw a diagram of how bandwidth works. Explain it in your own words. Task 3: - Research why we're likely to need each device on the internet. What do they do? Webopedia is a useful website for help with this. ​ Useful links: •https://vimeo.com/145842221 - This video will show you how bandwidth works using balloons. •https://vimeo.com/145844751 - This video will show you how buffering works. Final Task: - Start producing a blog post, video or poster depending on what your teacher requested. Make sure to use the keywords below•Make sure that you include information from the tasks you’ve already produced and make sure that you show all of your objectives have been met. •Keywords to use: Bandwidth, buffering, hardware, devices, WiFi, Connection
Kodu Lesson 1 : - Introducing programming (KS2/KS3)
r_chambersr_chambers

Kodu Lesson 1 : - Introducing programming (KS2/KS3)

(1)
This lesson does require some prior knowledge of Kodu but it gives you structure to start delivering the curriculum and it will allow you to break down each lesson and to start teaching the students different items step by step. There are opportunities for students to think about what is needed for a game. There is a worksheet to help them to start thinking about what they're going to need to include in their own game. Once you've introduced this, teach the students how to create characters, worlds, objects and how to write a simple piece of code. Students are required to use the worksheet as they work through this PowerPoint with the teacher. This is a sample lesson to get you started and can be used for KS2 or KS3.