Derrick’s presentation is based on his book “Sums. They’re Math Magic” and will involve pupils at each stage of his lecture.


Derrick Willer MBE


6:00pm - Assemble, refreshments and welcome first floor rooms EC1-27A and EC1-27B
6:45pm - Downstairs to ECG-24
7:00pm - Lecture Start
8:30pm - Lecture finish time


This Christmas Lecture is aimed at school pupils and the young at heart and features Fun Maths.

Interaction by our younger attendees is fully endorsed and welcomed, so please bring your youngsters along, especially if they are struggling with maths; they may get fresh insights.

Derrick’s presentation is based on his book “Sums. They’re Math Magic” and will involve pupils at each stage of his lecture. The pupils’ activities will be displayed for all to see, as well as the slides.

In a fun way, some things that will be covered are:

  • How do aliens (with only three fingers on each hand) count?
  • Where did numbers come from?
  • Card tricks involving logic
  • Measuring square roots
  • Handy multiplication
  • What is the probability that two people have the same birthday?

About the speaker

Derrick Willer

Derrick Willer is a chartered engineer working mainly in the manufacturing sector, now retired.

Derrick was born in 1939 in Peckham, London. He became an engineer after early exposure to Meccano.

He has supported schools, colleges, pupils and teachers for over forty years and was awarded an MBE for services to education in 2018.

He recently published a fun maths book, which he provides to local schools free of charge.

Our events are for adults aged 16 years and over.

BCS is a membership organisation. If you enjoy this event, please consider joining BCS. You’ll be very welcome. You’ll receive access to many exclusive career development tools, an introduction to a thriving professional community and also help us Make IT Good For Society. Join BCS today

For overseas delegates who wish to attend the event, please note that BCS does not issue invitation letters.


BCS is following government guidelines and we would ask attendees to continue to also follow these guidelines. Please go to for more information, advice, and instructions.

This event is brought to you by: BCS Coventry branchIET Coventry and WarwickshireInstitute of Mathematics & its Applications (IMA) and Institution of Mechanical Engineers (IMechE) (Warwickshire)

Sums: They’re Math Magic - Coventry Branch
Date and time
Wednesday 6 December, 6:30pm - 8:30pm
Coventry University
Frank Whittle Building – Previously, Engineering & Computing Building
3 Gulson Road
This event is sold out