Posts Tagged ‘Simple Algebra’

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Trick 1: The Great MATHoudini

September 18, 2018

The Great MATHoudini

Requirements: 1 phone book, Great showmanship

Start by handing one member of the class a sealed envelope. It contains a name that you have seen in your mathematical mind.

All will be revealed at the end of the performance.

Ask one student to write a 3-digit number on the board.

Ask a second student to turn this number around and subtract the smallest number from the largest number.

Ask a third student to turn that number around and add the last two numbers.

Example: N1 = 371.

N2 = 173

N1 – N2 = N3 = 371 – 173 = 198

N4 = 891

N4 – N3 = 891 + 198 = 1089

Give a fourth student a phone book. Ask them to go to page 108 and count down 9 places on the first column and read out the name.

Now open the envelope.

Da! Da!

 

How does it work? The numbers ALWAYS add up to 1089 so you had plenty of time to check out the name in the phone book.

Source: Magic/Menatalism Tips and Tricks

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m+m maths 4: How many m+ms will kill my dog?

June 22, 2015

Maths topics 10

Mathspig m&m maths 7aa

mathspig m+m maths 7b

You can find more Death by Chocolate Maths here and here.

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MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig …………………………………………………. with Kerry Cue

January 2, 2015

Mathspig New Year Res 2015

Hellooooooooo Sweeties,

This has to be the best way to save the planet. Yes! Eat up my little lovelies. For every kilo you pack on, you reduce your carbon footprint. Isn’t that the best news for piggies everywhere!!!!! You will find the yummy maths here:

How to pig out and save the planet

Meanwhile, here are some other mathsy things to do with pigging out for fun and profit:

Who uses more calories to travel 10 km: mini or man?

How far do you have to walk to walk off 1 kg of fat?

How far can a biodiesel car drive on 1 kg of human fat?

  ………………………………………………………………………..

Cheerio my Chubbies

Mathspig

 

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MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig …………………………………………………. with Kerry Cue

July 31, 2014

Mathspig Politicans maths

Hellooooooooo Sweeties,

Mathspig is always bemused that politicians (all shades), who struggle with maths of the economy, taxes and even their own expense accounts, suddenly become experts on how to teach maths.

Back to Basics is the current catch cry of politicians around the world … to win votes, of course. But what does it mean?:

Back to the 1950s?

With class sizes of 50, student reports stating ‘Margret was 33rd in the grade’ and the ‘strap’ waiting at the ready in the teacher’s desk draw.

Back to the 1960s?

When maths wasn’t taught to girls. (In Year 8 Mathspig went to a convent. The nuns only taught arithmetic.)

Back to the 1970s?

When the school curriculum was seen by some to be class-based patriarchal propaganda. Some schools stopped scoring football games to prevent the elitist paradigm spreading.

Today?

For some Back to Basics means Direct Instruction: a rigid, repetitious form of maths instruction when maths can be so much more. See Beware Maths Fundamentalists

Mathspigs Mission:

To make maths interesting, relevant and fun.

Here are some examples:

RATES:………………………………………………………………….

The Curious Nature of Drummers’ Brains

………………………………………………………………………..

% and LINEAR GRAPH:………………………………………

Hunger Games: How long does it take to bleed to death?

 ………………………………………………………………………..

PARABOLIC EQN:………………………………………………….

Hunger Games:  How much an arrow drops in 100m?

 ………………………………………………………………………..

GEOMETRY:………………………………………………………..

The raising of the Concordia

 ………………………………………………………………………..

PYTHAGORUS:…………………………………………………….

How Radar Works and the Search for a Ghost Ship

………………………………………………………………………..

Cheerio

Mathspig

 

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MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig …………………………………………………. with Kerry Cue

January 15, 2014

Mathspig Daily Express 2

Hellooooooooo My Little Butterflies,

Even if, like Muhammad Ali, you can move like a butterfly and sting like a bee, evidence shows that being hit in the head can cause brain damage and/or kill you. (Ban boxing – it’s demeaning and dangerous, New Scientist, 12 Aug, 2013)

Don’t get into a fight about this issue. Just do the maths. It’s a no brainer!

It’s a Knuckle Breaker KNUCKLE HEAD!

Toodles

…………………………………………………….

Mathspig

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MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig …………………………………………………. with Kerry Cue

November 7, 2013

Harry Potter Maths Pig

Hellooooooooo Mathpiggies,

Some schools teach maths as if it was a dead language like Latin.

Maths is great. Maths is useful. Maths is vital. Maths is fun.

But maths needs good PR. Tell students just how amazing maths can be. Everyday.

…………………………………………………………………………………………………………. 

We’re counting down the:

……………………………………………………..

10 Totally Awesome Reasons Why You Should Do Maths

With maths you can://////////////////////////////////////

/////////////////////////////////////////////////////////////////

1. Design a Monster Duck///////////////////////////////

/////////////////////////////////////////////////////////////////

2. Make a 3D Mini Me////////////////////////////////////

//////////////////////////////////////////////////////////////

3. Find a Ghost Ship////////////////////////////////////

///////////////////////////////////////////////////////////////

4. Build a Creepy Crabmobile////////////////////////

////////////////////////////////////////////////////////////////////////////////////////////////////////

5. Make Lotsa D’Oh!

//////////////////////////////////////////////////////////////

6. Clean Up Mega Messes////////////////////////////

////////////////////////////////////////////////////////////////

7. Produce Amazing Architecture

…………………………………………………………………………………………………

8. Create Awesome CGI for Harry Potter Films

……………………………………………………………………………………….

9. Rethink the Hotelicopter

……………………………………………………………………………………………….

10. Design Cool Techno Stuff

…………………………………………………………………..

Cheerio

Mathspig

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MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig MathsPig …………………………………………………. with Kerry Cue

August 6, 2013

mathspig world 2

Hellooooooooo Sweat Peas,

If you counted @ the rate of 1 number per second …. That’s 7 Billion seconds 

or (rounding off) 117,000,000 mins

or 1,944,000 hrs

or 81,000 days

or 221 years !!!!

Oooooooo! But this is sloooooow counting. 

How fast can you count?

You’ll find an online stop watch here.

Time yourself counting to 60. This will give you your count rate (60/time = rate nos. per sec)

Now you can calculate how long it would take YOU to count to 7 Billion.

Who is the fastest counter in your maths class?

More population maths follows.

Bye-de-bye

Mathspig