I’m grateful to Jemma Sherwood and Rob Low for reading an early draft of this and for their comments thereon. All opinions are, of course, my own. This post is inspired by something that I see crop up now and again in discussions with other Maths teachers. It usually manifests itself as a rallying cry…
Mathematical Objects: Pseudorhombicuboctahedron
A conversation about mathematics inspired by the pseudorhombicuboctahedron. Presented by Katie Steckles and Peter Rowlett. Podcast: Play in new window | Download Subscribe: RSS | List of episodes
Mathematical Objects: A pair of skipping ropes
A conversation about mathematics inspired by a pair of skipping ropes. Presented by Katie Steckles and Peter Rowlett. Podcast: Play in new window | Download Subscribe: RSS | List of episodes
My adventures in 3D printing: Seven Triples puzzle
At work we’ve got a 3D printer. In this series of posts I’ll share some of the designs I’ve made. There are seven kinds of shape. There are three copies of each shape. The pieces like to group together in threes. Can you arrange the pieces into seven groups of three so that for each…
My adventures in 3D printing: Prime number sieve
At work we’ve got a 3D printer. In this series of posts I’ll share some of the designs I’ve made. This is something I’ve wanted to make for a long time: a literal sieve of Eratosthenes. This is a collection of trays which stack on top of each other. Each tray has a grid of…
Review: Maths on the Back of an Envelope, by Rob Eastaway
A book about mental arithmetic? By Rob Eastaway? Count me in! In my fuzzy mental Euler diagram of topics and authors, Maths On The Back Of An Envelope lies in the intersection of several ‘favourite’ circles. Perhaps paradoxically, this meant I was expecting to be a little disappointed: how can a book, by an author…
My adventures in 3D printing: Golomb ruler
At work we’ve got a 3D printer. In this series of posts I’ll share some of the designs I’ve made. At the start of the Summer we (I) bought a new 3D printer for the department, a FlashForge Dreamer. It’s got two extruder heads, so it can do two-colour prints. To test that out, I…