# Challenge 4:

# The Great Maths Scavenger Hunt

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### Students must complete 2 challenges @ 4**⅓**points 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.)

### Here are the The Great Maths Scavenger Hunt PDF files: The Great Maths Scavenger Hunt

### Here are the answer guidelines: The Great Maths Scavenger Hunt Answers