don steward
mathematics teaching 10 ~ 16

Saturday 10 October 2020

Message from Don Steward's family

Unfortunately, my father Don Steward passed away from Covid-19 on 3rd May 2020.

Throughout his working life he was passionate about improving the teaching of mathematics and has requested that all of his work remains freely available.

As per his wishes, I have uploaded all of his work to this Blog in the pages section which contains links to google drive where slides and presentations can be downloaded for free.

Don has also requested that those who use his work make a discretionary donation to charities supporting education in Africa.

We have set up a Justgiving fundraising page to support this wish below:

Many thanks for all of the kind messages we have received which are of great comfort to myself and the family.

Kind regards,


Saturday 18 April 2020

what's gone wrong?

this problem posed by
jack frohlichstein (publ. dover, 1962)
mathematical fun, games and puzzles puzzle 153
free pdf version of book here

a ppt is here

oh, shouldn't they be the same answer?

Sunday 5 April 2020

sum squared minus sum squared

a ppt is here

links with the sum of the cubes

area proofs with insight

a ppt is here

an effort to collect together proofs that involve some form of geometrical insight

thanks to Dietmar Kuchemann

there are several good sources for geometrical problems
those by Ed Southall and Vincent Pantolini
and Catriona Shearer
are fairly well known

Saturday 4 April 2020

chair problems

a ppt is here

a mix of questions

nth term rule?
two others...

diameters in feet