There is more than 1 infinity. Enjoy some of the mathematics of infinity.

On MathsLinks: https://mathslinks.net/links/intro-infinity

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

In this quiz, graph 2 lines of the form `y= mx + c`, then determine the point of intersection.

On MathsLinks: https://mathslinks.net/links/solving-linear-systems-by-graphing-quiz

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

This activity is a simple response time game where the students chase a button, building up and analysing score data as they go. There is a one time "outlier" button that departs from the layout of the other buttons and should take the students by surprise and thus generate a meaningful outlier in the data.

The data can be displayed by a histogram and a box and whiskers plot, giving a good illustration of the relationship between them.

Questions to ask include:

- Look at any identified outliers. Was there anything different about your response on these occasions?
- What do you notice about the difference between the median and the mean?
- Can you relate this difference to the shape of the histogram?

On MathsLinks: https://mathslinks.net/links/understanding-outliers

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

James Grime looks at Proth primes.

On MathsLinks: https://mathslinks.net/links/78557-and-proth-primes

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

Vi Hart discusses Jerk. Jerk is the rate of change of acceleration; that is, the derivative of acceleration with respect to time, the second derivative of velocity, or the third derivative of position.

On MathsLinks: https://mathslinks.net/links/the-smoothest-ride

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

Data from CensusAtSchool of the height of Year 11 Female and Male students is provided to be presented in a back-to-back stem-and-leaf plot.

On MathsFaculty: https://mathslinks.net/faculty/back-to-back-stem-and-leaf-plot

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

Use the PowerPoint to understand the need for measures of spread, e.g. Range, and introduce the Interquartile Range. Includes teacher notes.

Based on this page from the ABS: http://bit.ly/absspread

On MathsFaculty: https://mathslinks.net/faculty/measures-of-spread

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

This foldable aids the identification of the different measures of location: mean, median and mode.

Students receive the template and follow the instructions in the PowerPoint to complete the foldable and work through the examples.

On MathsFaculty: https://mathslinks.net/faculty/foldable-measure-of-location

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

A presentation about box-and-whisker plots (boxplots) describing the key features of the plot. Includes an example of drawing parallel box-and-whisker plots.

On MathsFaculty: https://mathslinks.net/faculty/box-and-whisker-plots

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

The theory of social networks allows us to mathematically model and analyze the relationships between governments, organizations and even the rival factions warring on Game of Thrones.

On MathsLinks: https://mathslinks.net/links/network-mathematics-and-rival-factions

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

Fraction Talks are a built around classroom talk and student action. Simple visuals foster creative thinking around fractions.

On MathsLinks: https://mathslinks.net/links/fraction-talks

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

Explanation of bill from Sydney Water.

On MathsLinks: https://mathslinks.net/links/sydney-water-about-your-bill

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

A water bill example, pricing information and a few questions on interpreting the bill.

On MathsFaculty: https://mathslinks.net/faculty/reading-household-water-bill

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

What do you really spend your money on?

Check out our infographic below to see how Australians spend their money in 2012.

On MathsLinks: https://mathslinks.net/links/australian-spending-habits

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

The city has just opened its one-of-a-kind Faberge Egg Museum, with a single egg displayed on each floor of a 100-story building -- and the world’s most notorious jewel thief already has her eyes on the prize. Can you help the thief formulate a plan that will drop the most expensive egg she can get safely into her waiting truck? Yossi Elran shows how.

On MathsLinks: https://mathslinks.net/links/can-you-solve-the-egg-drop-riddle-yossi-elran

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

Of all the numerals, 9 seems to be the trickiest. But how can six 9s make 100? Deane shows two solutions to the problem.

On MathsLinks: https://mathslinks.net/links/tricky-nines

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

A quiz for graphing linear inequalities.

On MathsLinks: https://mathslinks.net/links/graphing-linear-inequalities-with-2-variables-quiz

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

This presentation is for teachers and/or students to show why the Trapezoidal Rule works.

On MathsFaculty: https://mathslinks.net/faculty/deriving-the-trapezoidal-rule

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

Math is full of symbols: lines, dots, arrows, English letters, Greek letters, superscripts, subscripts ... it can look like an illegible jumble. Where did all of these symbols come from? John David Walters shares the origins of mathematical symbols, and illuminates why they’re still so important in the field today.

On MathsLinks: https://mathslinks.net/links/where-do-math-symbols-come-from-john-david-walters

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>

Flipping pancakge stacks, a problem solving activity.

On MathsLinks: https://mathslinks.net/links/pancake-numbers

Follow MathsLinks on Twitter:@mathslinks or Facebook]]>