Based on hsi book "Sums. They're Math Magic" this  lecture uses maths as a basis for solving some fun maths questions including:

- alien counting

- card tricks

- event x even = even

- birthday probability

- weighing Pi

- triangular numbers

- measuring square roots

- handy multiplication

Derrick is available to present his lecture to local schools near Coventry and Warwickshire or, using the internet, world-wide.

Derrick Willer was awarded an MBE for services to Education in 2018.