Archive for the ‘GaGa Graphs’ Category

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3. Anamorphic Cube

February 11, 2016

10 Amazing ways to see a cube

This is quite a challenge. The idea is to draw an anamorphic cube so that the image, once projected onto a curved surface looks like a cube. You will find the template or graph for this exercise on Mathspig here.

It took me several goes to get it … sort of … right.

Mathspig Cube 3.1

Step 1: Make silver foil/cardboard cylinder to fit the dotted circle on the grid below.

Mathspig Cube 3.2

Step 2: Draw in the corners of the cube on the square grid and match these corners on the curved grid.

Mathspig Cube 3.3

Step 3: Draw in the three vertical sides of the cube and match these lines on the curved grid.

Mathspig Cube 3.4

Step 4: Draw in the top and bottom horizontal sides of the cube on the square grid and match these on the curved grid.

Getting tricky now.

Mathspig Cube 3.5

Step 5: Draw in the blue, orange and green sides of the cube on the square grid and match these on the curved grid.

Mathspig Cube 3.6

Step 6: Place silver cylinder on dotted circle.

Mathspig Cube 3.7

Step 7: Can you see the cube?

Mathspig Cube 3.8

Step 8: Here’s a closer look.

An even better Anamorphic Cube.

Anamorphic Illusion Art of a Rubik’s Cube

By John Snow

Amazing Anamorphic Illusions by Brusspup

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16. For the Fashion Unconscious

August 3, 2011

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This exercise will critique – anonymously – teacher fashion.

Here are some staff photos from the 60s, 70s ( 2 pics), 80s and 90s. Has there been any improvement?

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Ask kids to write a list of the worst fashion styles of staff. They should then use the list to survey the class to see what they think of the staff fashion sense without naming names, of course.  Draw a bar graph. Here are a few styles that could appear on the list. The idea is to be creative in the description.

eg. White Sox with Sandals

       Terrifying Tie

       Pretty Awful in Pink

       Green Peace Project

       Old Timer

      Hippie Reject

      Sports Shock Jock

      Dr Who Look alike

      Mad Professor Ensemble

      The I-Survived-a-Tornado Look

      Grunge Revisited

Then write 10 fashion tips for teachers to pin up on staff room.

Encourage the teachers to put on a fashion ashow. Some schools do. Here is

Here is the Swakeleys school fashion show for  teachers. They could ham it up more, but the kids think it is fun.

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The Manly Mo Maths … or Gaga Graphs 2

July 13, 2011

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Who would have thought, mathspigs, that there was so much maths in hair.

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Today’s post looks at the Majestic Moustache or the Manly Mo and moustache graphs.

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Here are Mathspig’s two favourite moustache graphs.

First, is the Moustache and the Decline of the British-Empire or 100-Year Itch @ TWC, which includes a pictorial record of the moustaches decline.

The second graph is from the American Mustache Institute* showing the decline in corporate reputation with the decline in the popularity of the mo with PR professionals.

THESE ARE HILARIOUS GRAPHS, but they are Gaga or Made Up Graphs.

How does Mathspig know this?

Because of the numbers.  The Y-axis scale is missing or irrelevant to the graphs shown.

These graphs are a bit of fun, but graphs are used to sell you products and some graphs can be totally misleading.

See Graphs for the Lost and Bewildered

Mathspig, promised you Manly Mo Maths. And there is Maths in MOs.

Nick Cave’s Mo is a Parabola.

John Travolta’s Mo is also a parabola.

The Village People all parabola MOs.

Captain Jack Sparrow’s

 beard is ∏ !!!!

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THIS IS A TOM SELLECK FRACTAL.

Goodness me, it’s a Tom Selleck  Eyebrow Mo Sierpinski Gasket

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MAKE YOUR OWN MANLY MO:

Not all MOs are real and Groucho Marx trade mark eyebrows & mo were painted on.

Why not get your own Manly Mo.

Or, mathspig teachers,  get your class to draw ‘parabolas’ on their hands and if a member of staff has a mo invite him into the maths class then on the count of three show him the whole class of ‘parabolas’

*If you love that moustache talk here is an American Mustache Institute Interview:

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GaGa Graphs

July 12, 2011

Today’s subject, mathspigs, is hairy.

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Yes! WE are looking at hair graphs.

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Some hair graphs are based on science,measuring and plotting.

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This is a real graph involving real maths. It is a plot of hair regrowth VS time graph using a hair growth agent. There are scientists out there somewhere actually counting hairs per sq cm.

More info @ NHS CHOICES website.

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Some graphs are FUNNY but FAKE

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… MADE UP

… DODGY

… GAGA

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These graphs use fake maths and fake numbers.

So mathspigs, watch out for the gaga graphs. They’re everywhere.

Here is a FAKE HAIR GRAPH. The hair is real. The graph is fake.

 

 

This chart can be found @ SMOSH.

In fairness to EMOs everywhere,

Mathspig thinks we need a few more

pie charts for other HAIR GROUPS.

Here is Mathspig’s Fake Graph :

DANGERS of HEADBANGER HAIR

57 % Suffer severe hair whiplash injury to groin.

19% Can belch the National Anthem.

17% Don’t realise they are dating their brother.

7%  Suffer Obsessive Compulsive Air Guitar Addiction.

You can make your own funny pie chart @ Free Graphs

Don’t forget it’s a jungle of hair out there and sometimes hair can be dangerous.

Here is an YouTube animation called The Danger of Hair

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Graphs for the Lost and Bewildered

March 31, 2009

Many, many tables and graphs have been published leading up to and during the current global financial crisis. The GFC, as it is called. But mathspig wants students of all ages to know that they can be mislead, ripped off and/or lose their life savings if they cannot read graphs properly.Mathspig found the following graphs in full page ads in Good Weekend The Age 26th July 2008, Sunday LIfe The Sunday Age 3rd August 2008 and The Weekend Australian Magazine, The Australian 2-3rd August 2008.

Mathspig is not saying that AMP set out to mislead investors but it would be easy for anyone unfamiliar with graphs to jump to the wrong conclusion. Why?  Have a look at the graph.

mathspig3aa-correction

mathspig3aa_tmp1

What’s the problem???? Have a look at the scale on the vertical or y-axis. it is not linear. In fact, it is logarithmic. It keeps doubling as you move up the y-axis. This  compresses the graph dramatically at the top. The following graph is clearer. It is a linear graph representing another ASX Index this time  the TOP 200, but it gives a much clearer picture of the the movement of share prices on the stockmarket in the US Sub-prime/oil crisis marked on the graph above. In fact, share prices dropped by nearly 50% from November 2007 to August 2008.

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