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This community has been created to share resources and subject knowledge with teachers of A-Level Computer Science. Drop us an email if there is anything in particular you would like us to cover.

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  1. Useful websites for A-Level CS.pdf Upload date: 22/04/2024

CAS A-Level Community

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James Kuht
16/05/2024 07:39

1-day Hackathon in London suitable for A-level Computer Science students

Morning all, we’re running a 1-day hackathon in London on Saturday 6th July at The Crown Estate, just off Piccadilly Circus. We have an incredible net-zero challenge, lots of industry mentors on hand, and short expert workshops throughout the day on software prototyping, developing in teams, AI in development and pitching. It’s a great ‘first hackathon’ for A-level students and our last one got an average rating of 9/10. It’s £25 to enter - which includes free food and drink all day - there’s also £2000 of cash prizes for winners and internships available, too…!

Learn more and register at Inversity

Thanks and hope to see some of you there :slight_smile: James

Becci Peters
15/05/2024 14:33

If you missed yesterday’s session about how AI changes the skills needed for software engineers, here’s a blog post summarising it which includes a link to the recording

Becci Peters
13/05/2024 09:22

Join me tomorrow at 4pm where I’ll be joined by a former Chief Technical Officer when he’ll explain ‘How AI changed the skills I hired for in Software Engineers and Data Scientists… and what this means for A-level CompSci students skills.’

Tony Seaton
09/05/2024 14:09

University courses for A Level students without Maths (and, indeed, a few good courses for those without A Levels) now added: The Open University, De Montfort University; Newman University.

There are some great HE opportunities out there for bright students who either didn’t flourish in school, or whose schools were unable to nurture or support their interests.

Pete Dring
09/05/2024 13:59

Brilliant - thanks Becci :slight_smile:

Becci Peters
09/05/2024 13:21

Many A-Level students won’t be studying Maths and will want to continue studying a CS-related degree when they finish A-Level. I’ve started putting together a list of degree courses which don’t require Maths A-Level. Please contribute any courses you know of, or come across which don’t require Maths A-Level and use to support your students CS degrees without maths req - Google Docs

Becci Peters
30/04/2024 09:48

For anyone who missed the session last night about using AI for assessment, here’s the blog including links to the slides and recording: AI to enhance assessment and integrity. AI TC Meeting
The later part of the session was focused on student use of AI in the NEA

Becci Peters
24/04/2024 10:40

Join me on Monday where I’ll be joined by 2 teachers discussing AI for assessment AI to enhance assessment and integrity

Becci Peters
16/04/2024 15:36

On Thursday at 4 pm I’ll be joined by Rebecca Franks for an introduction to Unreal Editor for Fortnite.

Explore our new enrichment resources that will support your learners in getting started in Unreal Editor for Fortnite. In the enrichment sessions, learners can design their own 3D world and personalise it with their own objects, they can then make a fun collectable game.
Sign up here: Getting started in Unreal Editor for Fortnite

Becci Peters
15/04/2024 16:43

On Wednesday at 4 pm I’ll be joined by Harry Wake and Anna Wake who will be
-offering some top tips on how you can make your programming lessons more interesting.
-demonstrating how to teach fundamental programming contexts with real-life scenarios, for instance, how programming can be used to tackle climate change.
-showcasing Mission Encodeable, the website they’ve created that takes students from knowing nothing about programming in Python to being able to answer high-demand GCSE programming questions. It’s completely free to access, very popular with students, and includes lots of interesting, real-world projects.
Sign up here Mission Encodeable's free programming resources

Jake Gordon
10/04/2024 18:20

@bpeters suggested I share this here too…

Marta Bronowicka
10/04/2024 13:44

DSIT are carrying out a survey to understand why teachers choose to deliver or not deliver the CyberEPQ and what the main incentives and barriers are. It should only take 10 minutes to complete and your participation will be highly appreciated and valuable to DSIT policy makers, whether or not you currently deliver the CyberEPQ.

Complete the survey here -

Becci Peters
08/04/2024 11:06

05 – 09 August 2024, University of Southampton


Take your child’s passion for STEM to new heights in this five-day, ALL-INCLUSIVE residential course. This course will introduce students to industry professionals from Amazon Future Engineer, plus provide them with the opportunity to design and build their own robots whilst learning about the fundamentals of coding and circuits!

This course is available to students currently in Year 12 in England and Wales, S6 in Scotland, and Year 13 in Northern Ireland.

Louise Hayes
05/04/2024 09:32

Hi Alan, on another topic - I wonder if there is a CAS meeting planned for Manchester Central? I am happy to come along or host at Tameside College if a venue is needed.
Thanks, Louise

Mandy Honeyman
12/02/2024 12:45

Please sign up yourself or point your students here: Isaac Computer Science
This is an opportunity for your students and you to find out more about apprenticeships from the BCS and about other alternatives to traditional university degrees at an Isaac Discovery event we are hosting at 9am-10:30 am on 20th February 2024. (Aware that we are hitting half-term for some schools!)

(I’ll cross post to other threads - with advance apologies)

Abirami Kumar
09/02/2024 08:33

Thank you Richard, The spreadsheet really helps.

Richard Pawson
08/02/2024 19:40


Not a worksheet as such, but if you are teaching floating point normalisation, you might find this interactive spreadsheet simulation that I created useful:

It is quite sophisticated, but by interacting with it you end up with a really strong feel for how normalisation works and why it is important to maintain accuracy. Also gives you an understanding of why the first two digits need to be different.


Abirami Kumar
08/02/2024 13:42

@Alan Harrison, thank you. I never thought about chatgpt worksheets.

Alan Harrison
07/02/2024 13:43

@Abirami Kumar I use Craig’n’Dave resources, ExamBuilder and Isaac, but I also just used the free ChatGPT 3,5 to create some questions with this prompt.

Create a worksheet of six questions worth between 4 and 8 marks each, on 2’s complement fixed and floating point binary numbers, suitable for an exam in OCR A-level in Computer Science. Each question should have a mix of AO1 (demonstrate knowledge and understanding), AO2 (apply knowledge) and AO3 (evaluate and design solutions) marks. At the end of the worksheet write the mark scheme with model answers.
The results are in the chat transcript here, along with a follow-up prompt to create some simple conversion questions. Results are not bad, might need a tidy up.

Becci Peters
07/02/2024 13:33
priya ravi
07/02/2024 13:07

I still can’t find the resources from 5/2/24 session - Useful websites to teach A level.
Can anyone help?

Andrew Russell
07/02/2024 09:02

@abirami Kumar, I teach it off the board, but you could try the Isaac Computing workbook? Isaac Computer Science

For OCR the questions on Data representations start on p127.
Alternatively ZigZag have worksheets with some questions.

Abirami Kumar
07/02/2024 08:21

Does anyone have worksheets for 2’s complement and fixed and floating point binary.

Simon Humphreys
06/02/2024 11:08

Hi all, for those of you teaching KS5, your learners may be interested in applying for an Apprenticeship at Arm. They have Level 4 and Degree apprenticeships in the Arm Cambridge offices.

Apply here: Search for available jobs at arm here

Becci Peters
05/02/2024 16:58

Lots of useful websites are linked to from here: Useful websites for A-Level CS - Google Docs
Do add your own if they’re not already included

Robert Nixon
09/01/2024 14:27

Once I have taught Boolean algebra I get my classes to do Boolean Algebra Quiz and see how many questions they can get right in a row.

Becci Peters
09/01/2024 10:03

Are there any useful websites you use for teaching or would recommend for your students? Hoping to showcase some at our next event on 5th Feb. Email me if you’d be happy to show (

Mandy Honeyman
28/12/2023 13:15

Ok, links being stripped out. Please do go to discover events for more details.

Mandy Honeyman
28/12/2023 13:12

Hi there, I’m very excited to be able to offer “Alternatives to traditional university degrees” to a-level students via Isaac Computing events. As an OU graduate and post-grad and a teacher with an utterly non-traditional career, I would not be writing this here now without the OU. We are also talking about Apprenticeships and Code First Girls degrees. Isaac Computer Science
I hope it’s okay to tell people about this here :).

Robert Nixon
19/12/2023 10:32

As someone teaching OCR for the first time this year these are really useful - thank you!

Becci Peters
15/12/2023 09:29

Thanks to those who came to the session this week about marking OCR exam papers. Here are the slides from the session. Do let us know if there’s anything you’d like covered in future sessions

Bruke Bayeh
09/12/2023 23:46

Good idea!


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