Thursday 19 March 2015

Spirograph! One of the things I loved the most as a kid

Whenever I am in vintage or second hand shops I always look for Spirograph. I could twirl the things for ages making amazing designs.

It's now online! I would prefer the set, but this is amazing.

Make something beautiful and upload it to the gallery.

Better yet investigate the mathematics in those designs.

CHECK IT OUT HERE



Sunday 15 February 2015

Noodles, hair, atoms, exponential growth and decay and fractions.

This cool Youtube video has mathematics relevant for grade six and grade 11 courses right now.

For grade six - they can compare it with the doubling we did when we discussed ebola. They can also look at half of a half - multiplying a fraction by a fraction or as we say in mathsland the product of two fractions.

Grade 11 - this is exponential growth and decay simultaneously depending on how you view your noodles.