A blog about teaching and learning in a maths classroom.

Saturday, 05 October 2013 | Comments

Prime number keys 4 Oct 2013

Have you ever wondered how modern day encryption works? How are messages and financial transactions kept hidden from cyber criminals and hackers? Listen to reporter Ruben Meerman and mathematician Simon Pampena discuss the largest prime number ever found and how prime numbers are used to encrypt electronic information.

Motor vehicle registration duty calculator 2 Oct 2013

This calculator will estimate the amount of duty you need to pay on motor vehicle registration in NSW.

Pie Charts fo Math Nerds 29 Sep 2013

A video about pie charts using pie.

How big are extremely small objects? 29 Sep 2013

Nanotech is the engineering of matter so tiny, it's measured in nanometres. That's one-billionth of a metre - or about the distance your fingernail grows every second. But over the last decade, tinkering with tiny things has become seriously big business.

Primitives 29 Sep 2013

Primitives represents numbers in terms of their prime factors, offering unusual insights into their structure. Numbers are presented as nested sets of small black dots. Three is presented as a blue circle enclosing three dots; a ‘set of three’. Six is presented as a set of three sets of two dots, or as a set of two sets of three dots.

Doodling in Math Class: DRAGONS 29 Sep 2013

You can totally draw fractals freehand.

Fermat’s Last Theorem - Numberphile 29 Sep 2013

Simon Singh on Fermat's Last Theorem.

Penny Circle | A Dan Meyer Three Act 29 Sep 2013

Students explore a problem in the three-act style. The site is interactive and as a teacher, you can collect the data from all your students automatically. Students will understand how to use math as a model, how to use smaller things to make predictions about bigger things. Students will understand the difference between linear, quadratic, and exponential models.

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**Simon Job** — eleventh year of teaching maths in a public high school in Western Sydney, Australia.

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