A blog about teaching and learning in a maths classroom.

Friday, 01 November 2013 | 0 Comments

Gambling: Calculating the Risk 31 Oct 2013 · via penelope.field

Las Vegas here we come... How often do you win on Scratchies? How about the Pokies? Is Roulette more reliable or Lotto? Play these games while learning about the probability of winning in each of them.

Area of a Rhombus 28 Oct 2013

A GeoGebra worksheet to derive the area of a rhombus.

Area of a Rhombus (deriving visually) 28 Oct 2013

A video showing the visual derivation of two forms of the formula for finding the area of a rhombus.

Area of a Parallelogram 28 Oct 2013

This applet will show you how to divide the parallelogram into pieces, arrange them together to form a rectangle, and then use the formula for the area of a rectangle to find the area of the parallelogram.

Area of a parallelogram - derivation 28 Oct 2013

This page describes how to derive the formula for the area of a parallelogram. It works by moving a piece of the parallelogram so as to make a rectangle with the same area, which is easier to calculate.

xkcd: Monty Hall 26 Oct 2013

An xkcd comic on the Monty Hall (probability) problem.

Gauging Your Distraction 25 Oct 2013 · via Sir Maths Alot

New studies show that drivers overestimate their ability to multitask behind the wheel. This game measures how your reaction time is affected by external distractions. Regardless of your results, experts say, you should not attempt to text when driving.

How fast are your reactions? 25 Oct 2013 · via Sir Maths Alot

Test your reaction time with this game.

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

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