Students must complete 2 challenges @ 2 ½ points each: Minimum of 2 challenges, Maximum of 4 challenges.

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3.The Great Maths Race

* Make a protractor Anemometer and calculate the current wind speed. Conversion Chart here.

* Bring a sextant

* The Brix number is used to measure sweetness. One degree Brix is 1 gram of sucrose in 100 grams of solution. What would the Brix number be for orange juice, Gatorade and coke? You will need to know the sugar content in gm for each drink ( Look here) and the volume of a coke can or bottle.

* Make a poster using maths symbols going off at a tangent.

* Your growth chart for 10-year period.

* Width of the front of the school block in toilet paper sheets. You will find some handy measurements here.

* Bake a π pie

* Cook a Fibonacci cake

* Bring in a mock up poster (in waste paper) of all paper sizes from A8 to A0.

* How much do we spend per person each year on toilet paper? You will find information @ toilet paper fun facts. Yes! There is a Toilet Paper Fun Facts website. We use an average of 57 sheets each per year and, say, a toilet roll has 350 sheets. You will have to price the toilet rolls.

* Prove 1 + 1 = 2 in the most complicated way you can.

* Demonstrate Pythagoras Theorem using Saltine crackers.

* Develop a maths clap chant. Team must teach clap chant to class.

* Make potato stamps of the surds: √2, √3 and √5 and stamp an equation.

* Use bubble gum to demonstrate the parabola to the class of y = x^{2}

* Make an Origami Pentagon from a square

* Make a (with clothes on) photo of yourself as Leonardo da Vinci’s Vitruvian Man.

* Make Pascal’s Triangle using jellybeans or rice grains

* If your hair kept growing at the average rate of 0.04 cm per day, how long would it take to reach the same length/height as you? Show calculations.

* Make a poster of Bernoulli’s Triangle 20 lines long.

* The fastest remote controlled car on earth, so they say, is the Traxxas XO-1, which goes from 0-62mph ( 0 – 99 kph) in just 2.3 seconds and can hit 100mph (160 kph) in less than five seconds. How long would it take for the remote controlled car to travel to your nearest Macdonald’s and return with fries at 62 mph and 100mph? Print out a map.

* Research the height and weight of 10 famous ballerinas and plot these statistics on a height Vs weight chart. Is there a mathematical pattern?

* If a kangaroo can hop at 25 kph (15.5 mph), how long would it take to hop across the middle of Australia E to W?

Students must complete 2 challenges @ 4⅓points each. No additional challenges allowed.

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4. The X Squared Factor

* Make an origami soccer ball

* Video of a pile of Lego sorting into a Venn Diag of shape, colour and bumps

* Fill a matchbox full of rice. How many grains? How many grains of rice to fill an Olympic swimming pool?

* Learn π to 20 places then annoy everyone. No. Just demonstrate this skill.

* Devise a way to simply measure the volume of a set of keys. (Go Archimedes Go)

* Toast the area of a piece of toast into the toast.

* Draw a simple picture of mathematician on graph paper. Write the co-ordinates of major points [eg. (2,5), (5, 7) etc] in order so that someone else can redraw the picture without seeing it. Test it.

* How many corn flakes are there in a 750gm box?

* Trap yourself inside a Matrix. Full points for most creative effort.

* Give a 3-minute humorous talk on why fractions are vulgar.

* Devise a method to calculate the speed of ants around your house or the school. Now calculate the time it would take for an ant to finish the 100m Olympic sprint.

* Demonstrate n! from n = 1 to n = 10 in Lego blocks

* Bring in an Abacus and demonstrate how you multiply 96 x 72.

* Find the minimum aeroplane seat width @ Seatguru for British Air, Qantas and American airlines. Now calculate how many seats these airlines could fit across your couch @ home.

*Rewrite the 12 Days of Christmas Carol with maths terms. Sing in woollie hat and scarf to class.

* Sing the 7 times table to the class Opera Style.

* There are 1,070 dimples on a golf ball. The diameter of a golf ball is 4.3 cm. How many dimples per square cm? The diameter of a tennis ball is 6.9 cm, how many dimples would fit on a tennis ball?

* How many slices of bread to cover your country? How many loaves? You will find size and links here. A pre-sliced loaf of supermarket bread is approx 10 cm by 11 cm.

* A large tube of toothpaste is 4.2 oz or 119 gm. What length of toothpaste squeezed in a straight line could you squeeze out of that tube?

* How much air is in an Aero? This can be calculated. By weight and by volume.

* How many 100s & 1000s or sprinkles or jimmies are there on average on top of a cup cake? Make an equation (That’s algebra, folks) using symbols made of sprinkles on cupcakes. Bring to class. They will be eaten.

* Rewrite Some of My Favourite Things from the sound of music using only maths terms. You can make clothes out of curtains or use old clothes and felt markers and whatever grabs your imagination to make a maths tie/skirt/shirt/hat to sing the song to the class.

* What is the probability that a peanut butter sandwich will land peanut butter if you get a fright and throw it in the air? Show trial numbers.

* How many channels can you surf in a 20 second period? If you had to get up off the couch, walk to the TV set, push a button and return to the couch, how long would it take to surf that many channels? Yeah! Like in the olden days.

* Make a complex tessellation using Cuisenaire rods or potato stamps you have carved. (Diagram below is not a tessellation but nice potato stamp art.)

A part of Mathspig’s mission is to show students how maths is used in the Real World, which means everywhere.

Gather round fashionistas, catwalk strutters, A-listers, party people and cool dudes…. the usual suspects. If you want work in the fashion industry you should be able to read the graph ( below). This was published in the business pages of The Age (27/7/09).

What does it mean????

Have a look?? Can you guess?

This graph represents the price of men’s undies vs women’s undies. This data is based on the Consumer Price Index. Economists collect prices of , maybe, 200 undies, pjs and socks across Australia and calculate the average price every three months.

The price of men’s underwear, nightwear and socks fell 3.8% last 3 months to June 30. Whereas the price of women’s undies, nightwear and hosiery rose by 9.7%. If you look at the graph you will see in March 1981 men and women were paying the same for undies. This is just the cost. Women probably spend more on undies because they buy more. Today woman are paying 0 .3 or 30% more for their undies, hosiery and pjs than men.

If you own a shop or fashion business you must know what’s going on. Stock up on women’s undies now!!!!! In a recession women tend to spend more on underwear than expensive dresses. Whereas men tend to keep their old undies going for a few more months…. years possibly!!!!!! Men aren’t buying undies so the price drops. BOXERS. UNDERDAKS. SALE. SALE. SALE. Women are buying more undies so the price goes up. This is not guess work. You can see the trend in the graph.