Edgbarrow School Teacher Network

It's turtles all the way down - how understanding of proof can support students moving from KS4 to KS5


Edgbarrow Teacher Network is an AMSP-funded project, allowing teachers of Mathematics in the Crowthorne, Bracknell and Wokingham area of Berkshire to meet, collaborate and to share best practice. We meet termly and the programme is planned by teacher request and will include informal sessions and training events.


  • Why do we need to include proof, and why is that challenging to achieve?
  • Squeezing the max from some juicy proofs
  • What are the high level messages from this set of proofs?


In this session, we’ll tackle The Problem With Proof head-on, looking at why this is the key to successful progression in mathematics and how you can incorporate proof into all aspects of your GCSE teaching in a way that will support your students’ progress into post-16 study...

…but mostly we’ll be looking at lots of different examples of proof in action and taking the opportunity to refresh our enthusiasm for challenging mathematics.

The meeting will be led by Jo Sibley who lives on the sunny south coast in Poole and has taught Maths and Further Maths for 21 years. She has been an FMSP Area Coordinator and is now on the AMSP National Team as the Coordinator for Online Professional Development.


  • Teaching proof from the basics upwards, including communicating mathematically
  • Transferring the proof experience you have gathered over years into the brains of your students
  • Share different examples of proof and refresh our enthusiasm for challenging mathematics

Who will benefit from attending?

All teachers of GCSE and A level Mathematics who would like to develop their teaching of proof

Related meetings

This session will focus on proof in the GCSE classroom and the transition to A level. There is a related session on 9th March focusing on proof at A level; details can be found here: https://amsp.org.uk/events/details/8225 While there are links between the sessions, we are aiming to avoid any overlap in the examples, so teachers can attend both if they wish.

Materials and Equipment

We recommend that you have the following available for the session:

  • A working microphone, to facilitate discussion
  • A beverage of your choice, working on the principle that "a mathematician is a machine for turning coffee into theorems..."

Electronic copies of all resources used will be available after the event.


The AMSP uses BigBlueButton (BBB), which is an online conferencing system that allows participants to collaborate in real time. It is easy to use and has features which enable a tutor and participants to communicate live on-line by using audio, video, instant messaging and, if needed, writing on a shared virtual whiteboard.

The session will be remote and will take place on the BigBlueButton platform, as such you will need a laptop/desktop computer or other internet enabled device. 

We will set up the classroom and send you the classroom link, via e-mail, shortly before the session is due to start. 

BBB is designed to be used on a variety of platforms but you will get the best experience via a desktop or laptop computer, running either Google Chrome or Mozilla Firefox as the browser. Note: Internet Explorer and Edge are not suitable currently.

It is advised that you check the requirements to access the online classroom in advance of the live session that you will be attending. You can do this at any time. 

Key Facts

Event ref:




Curriculum focus:

11-16 maths, A level Mathematics

Mathematical focus:

Pure, Problem solving

Event format:

Network meeting

Event length:

1 hour


Online, in South Big Blue Button room


Thu 25th Mar 2021

Course times:

16:00 - 17:00


Printable Version


If you have any queries about this event, please do not hesitate to contact:

Phil Marshall
[email protected]
07340 280388

The AMSP, through MEI, holds the NCETM CPD Standard

National Centre for Excellence in the teaching of Mathematics

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