Why 4.669 is famous? - Numberphile

The Feigenbaum Constant and Logistic Map. An interesting Numberphile. Could be used as an extension from exponential growth.

Can you solve the counterfeit coin riddle? - Jennifer Lu

The TEDEd channel on YouTube has published a number of riddles. Can you solve the counterfeit coin riddle? is the latest. There are more here.

Sandpiles - Numberphile

Luis David Garcia-Puente discusses sandpiles, and how they produce amazing "fractal zeroes". Longish video - takes a while to warm up, but gets interesting.

Hidden Triangles

Can you find all the triangles when a five-pointed star is drawn inside a pentagon? From the Curiosity Show.

Dates as Operations - Kirsty Fish on Twitter

In Issue #2 I shared an idea Dates as Operations. Here is how Kirsty Fish @Kirstymaths is implementing this idea in her classroom.

100 questions that promote Mathematical Discourse

Can the questions you're asking in the mathematics classroom be answered with a simple “yes” or “no,” or do they invite students to deepen their understanding?

A free printable with 100 questions to promote mathematical thinking and encourage classroom discourse.

Increasingly Difficult Questions

A growing collection of exercise sets of increasing difficulty. See the how-to from the author. Added to MathsKit under Worksheets and printables.

Setting Your Child up for Success with Maths: Tips for Parents | Catherine Attard

There are many things parents can and should do to help their children learn mathematics, particularly before they begin school and during the primary school years. This article has a list of tips for parents that will help them to help their children succeed.

All The Mathematical Methods I Learned In My University Math Degree Became Obsolete In My Lifetime | Keith Devlin

"The most basic of today’s new mathematical skills is number sense. The other important one is mathematical thinking. But whereas the latter is important only for those going into STEM careers, number sense is a crucial 21st Century life-skill for everyone."