Archive for the ‘Uncategorized’ Category

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Giant Easter Egg Math … USA units

April 5, 2019

Good News for Chocoholics

To get the right texture Easter Eggs are made from sugar or sucrose and not from corn syrup. But chocolate contains lots and lots of sugar.

Guylian sea shells

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Guylian Sea Shells:

Weight Sea Shell: 4.23 oz

Weight Sugar: 1.69  oz

% sugar = 1.69/4.23 x 100 = 40%

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Guylian luxury easter egg

This is a Guylian Luxury Easter Egg. It can also be used as a designer handbag, I guess.

Guylian Easter Eggs:

Weight Easter Egg: 3.53  oz

Weight Sugar: 1.83 oz

% sugar = 1.83/3.53 x 100 = 52%

You’ll find nutrition data here.

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Easter Challenge:

You will find the largest Chocolate Easter Egg ever here.

This egg is 34 ft 1.05 in high and weighs 15,873lbs, but  it is ugly.

I like the GUYLIAN GIANT EGG (below) because it looks good and we know exactly how much sugar is in this egg. Mathspig Big Easter Egg

This Giant Egg was made in 2005 in Belgium by chocolate maker Guylian.

Statistics:

Height:  27 ft

Weight:  4300 lb Chocolate

No. Chocolatiers: 26

No. Chocolate bars: 50,000

Total time: 525 hrs

Easter Challenge for Chocoholics

fiat punto 1The amount of sugar in the giant egg weighs as much as a Fiat Punto.

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41 Maths things to do before you’re 12

March 25, 2019

Mathspig outdoor play quote

mathspig outdoor-play-app

A growing body of research shows us that outdoor play leads to better physical and mental health, has positive effects on cognitive function and learning, and reduces the incidence of behavioural problems.” Maria Zotti, Nature Play, SA.

Peter Dunstan, Principal Kilkenny PS, SA, writes in SAPPA magazine, Primary Focus, that outdoor play fosters “wonderment, independence and freedom” as well as “social skills, imagination, creativity and problem solving”.

Inspired by SAPPA and NaturePlay,  Mathspig has produced her own outdoorsy maths list:

 Mathspig 41 maths things 1Mathspig 41 maths things 2mathspig 41 maths things 3

Mathspig 41 maths things 4mathspig 41 maths things 5

References:

7. Robin Hood Give us your best shot.

9. You can measure the volume of your lungs by blowing one breath into a balloon and pushing it into a full bucket of water. Measure the overflow.

15: Outdoor Maths: Times Tables

21. Light intensity links. Here and here.

25.  Sound Volume Measurement

36. Killer heels that really kill.

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Math Joke 2: Nick Cave’s Mo is a Parabola

February 22, 2019

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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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Math found in Strange Places

April 19, 2018

Mathspig was walking down a street in her home town, Melbourne, when she came across this Street Art piece on a wall of an auto-repair shop in Lygon St, Brunswick.

She nearly did a backflip with mathematical joy.

Fibonacci Rules!!!!!!!

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Winter Olympics: Bad Math of Figure Skating Scores

February 22, 2018

According to the fab NBC video, Mathletes,  nine Figure Skating judges score competitors for the complexity of each element (eg. Triple axel or triple spin jump) and the quality of the performance producing a score out of ten.

Tessa Virtue and Scott Moir win GOLD at Pyeong Chang 2018

                                   Kailani Craine, Australia

figure skating score 9 judges nbclearn

This is a typical figure skating score card for one competitor.

The final score, however, is based  on the average for only 5 of these scores. Two are eliminated by random selection (Red Brackets). Then the top and bottom scores are removed and the remaining five scores averaged.

Screen grab NBC Mathletes

Screen grab NBC Mathletes

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Now consider the IDENTICAL SCORE CARDS

of Skater A & B:

figure skating score A

Skater A:

Four scores are removed. Two by the random selector (in brackets) and then the top and bottom scores (with line drawn through them)

7.00 + 7.00 + 7.00 + 6.75 + 7.00

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=  34.75/ 5 = 6.95

figure skating score B

Skater B:

Four scores are removed. Two by the random selector (in brackets) and then the top and bottom scores (with line drawn through them). But this time the random selector eliminates two low scores.

The average:

7.00 + 7.25 + 7.00 + 7.00 + 7.00

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=  35.25/ 5 = 7.05

Same score cards but Skater B gets a higher average score than Skater A.

Skater A is, in fact, beaten by a random number selector!!!!

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4. Too many different ways to do the same thing

October 11, 2017

The Complaint:…………………………………………………………

Too many different ways to do the same thing

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The Cause:……………………………………………………………….

Often, students , who are struggling with a concept, find it even more challenging when changing grades and/or schools because a new teacher uses a different method to the one they were taught.

eg. Long Division must have the most ridiculous number of methods for doing it.

Add a multi-cultural classroom and even more confusion results.

More maths news from around the world here.

eg. 2  Expand double brackets

1. X-multiply Method

This is the Method Mathspig taught students long, long ago.

2. Standard Method

Video tutorial from Me vs Maths here.

3. Grid Method

Video tutorial from 3 min Maths here.

The Solution:

Find the method that works for you. Stick with it and practice, practice, practice.

eg. Long Division

Here is the BEST EVER long division method

THE LEGO ARGUMENT:

It would be tragic IF  Lego blocks only had one solution. That is IF 6 Lego blocks could only be arranged in one way. In fact, the number of possibilities of arranging 6 blocks is MIND EXPLODING!

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10 CRAZY CREATIVE MATHS BLOGS

April 14, 2016

10 CRAZY CREATIVE MATHS BLOGS

Background pattern found here.

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1. Creative blog Mathspig

Botanica Mathematica is a Mathematical knitting blog  with patterns included run by Dr Julia Collins and Haggis the Sheep.

 

1a Creative Mathspig

1b Creative mathspig

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2. Creative blogs Mathspig

 

 The Mathematician’s Shirts! is a creative maths blog run by Julia Collins and Madeleine Shepherd. Yes! The same Julia Collins as above. It is a small collection of shirts but Big on imagination and this project is something middle school students could tackle using an old shirt. More on Flikr here.

 

 2a. Tending towards hyperbolic by Madeleine

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3. Creative blog Mathspig

The Division by Zero blog is very mathsy. Seriously mathsy. It is run by David Richeson, Professor of Mathematics at Dickinson College. Even though it involves tertiary level maths it is full of curiosities about maths such as this gem below:

Screen shot 2016-04-14 at 1.25.41 PM

 

 

I particularly loved the post about Gabriel’s Horn:

3a Creative Maths

And pictures of Gabriel’s horn made out of paper cones. Gabriel’s horn is the surface obtained by revolving the curve y = 1/x for x> or = 1/2 about the -axis. Mathematics professors ‘wow’ introductory calculus students by sharing its paradoxical properties: it has finite volume, but infinite surface area. As they say, “you can fill it with paint, but you can’t paint it.”

 

The Golden Arches get a working over as well. Are they based on a parabola, Catenary (strung up chain hanging under it’s own weight) or other. It turns out it is other … the Golden Arches fit an ellipse.

3b Macdonalds maths mathspig

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4. Creative blog Mathspig

Visualising Math is a terrific Tumblr feed run by Monica Anuforo and Casey M. both college maths students from Minnesota, USA. I think Monic’a comments on the blog tell us all how important it is to engage Middle School students.

 

Monica Anuforo: Hello! I’m an 19 year old Nigerian-American female. Obviously, I’m a fan of mathematics. I was one of those people who were lucky enough to find out that MATH IS AWESOME as early as middle school as opposed to later in life.

 

4a Creative maths

 

The Tumblr feed is a fabulous collection of mathematical images including fractals, gifs and jokes. Some of these images (See below) could be drawn, coloured or constructed by Middle School students so they too can discover that maths is awesome!!!

4b Creative maths

 

 

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5. Creative blogs Mathspig

Math for Lovers is an anonymous Tumblr feed run by Kcmr. It is an eclectic collection of maths art, gifs and jokes. While it hasn’t been updated for awhile the images are still worth exploring. Here are just two:

5a Creative Faig Ahmed

Faig Ahmed is an internationally recognized artist from Baku, Azerbaijan, who represented Azerbaijan at the Venice Biennale in 2007. He is well known for his conceptual works that utilize traditional decorative craft and the visual language of carpets into contemporary sculptural works of art.

5c Creative Cut and paste novel wall art

Cut and paste novel wall art at etsy.

You have to love a maths blog that announces:

This is why geometry is important kids. It can blow your mind.

This is a brilliant clip of Klemens Torggler’s kinetic art door based on rotating squares. The special invention makes it possible to move the object sideways without the use of tracks.

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6. Creative blogs mathspig

Math is Beautiful,a maths tumblr stream, is oldish and seriously mathsy but some of the stunning visual images and interesting gifs would intrigue Middle school students. e.g. The image below is a screen grab of a circle of dots that rolls around the circumference inside a bigger circle …. but … but .. but … the gif shows that the dots actually only move along the diameters marked. Fas-kin-ating!

6a. Creative Mathspig

 

6b. Creative Mathspig

 

Here is another screen shot (above) of a gif tagged ‘I cannot stop staring at this. Try it. Your mind will be taken over by a higher power.

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7. Creative Blogs Mathspig

The Advanced Geometry Tumblr stream is a stunning visual feast combining art, geometry and design. By art I mean … could be arty but naked bodies. But exploring the imagery is simply inspiring.

7a Randomly Generated Polygonal Insects

 

Randomly Generated Polygonal Insects by ‘Istvan’ for NeonMob

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8. Creative blog Mathspig

Susan Lombardo created the Math and Fiber blog for students in an upper division college geometry course. The beauty of this blog it gives step by step instructions on how to create a crocheted coral reef, adds the maths behind the project and many interesting links.

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CONSERVATION CROCHET Project at the University of Washington

8b Gabrielle Meyers’ Hyperbolic Surfaces

And Gabrielle Meyers’ Hyperbolic Surfaces

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9. Creative blogs Mathspig

Hyperbolic Crochet Blog

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Also check out Hyperbolic Crochet Blog of a Palestinian Maths teacher. Daina Taimina combines math education, knitting and crochet and her love of art in her book Crocheting Adventures with the Hyperbolic Planes. This blog also provides a fascinating looking at math taught in a different language and script!!!!!!

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10. Creative blogs mathspig

The Virtual Math Museum links you to some of the most fabulous maths artists in the world including:

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Brian Johnston and his Hydrogen Orbital (above)

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and Luc Bernard and his Kuen’s Surface:

A Meditation on Euclid, Lobachevsky, and Quantum Fields.

 

 

And more ….