Posts Tagged ‘simple’

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1. Maths is BORING!

November 13, 2017

MATHslam is maths middle school students can manage and the results are ASTOUNDING. Go to MATHslam 3 link here.

There will be more MATHslam posts to come.

Mathspig is full of AMAZING middle school maths such as:

KARATE MATHS

HOW MUCH BLOOD CAN YOU LOSE AND SURVIVE?

WHAT VOL OF ALCOHOL IS LETHAL FOR TEENS?

THE TERRIFYING MATH OF RUNNING FROM A BEAR USA UNITS

THE TERRIFYING MATHS OF RUNNING FROM A BEAR METRIC UNITS

PARABOLAS AND THE ART OF SPIITING WATERMELON PIPS

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8. When will I EVER use this maths?

August 19, 2017

The Complaint: I’ll Never Use This Maths!………………

………………………………………………………………………….

The Cause:

Text book exercises that are good for skill building, but appear irrelevant to the real world.

………………………………………………………………………….

The Solution:

You are going to use this maths NOW

………………………………………………………………………….

8a. Calculate Your Daily Iron Intake

8b. How much blood can YOU lose and survive?  

METRIC………………………………………………………………..

USA Units………………………………………………………..

8c. What Volume of Alcohol is Lethal?

 

 

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8c. What Volume of Alcohol is Lethal?

August 14, 2017

The Complaint

8c: I Will Never Use this Maths

The Solution:

You are going to use this maths NOW……………..

……………………………………………………………………..

How much alcohol will kill you?

TOPICS: Decimals, %, algebra, vol, weight units (Metric)

At low levels of consumption alcohol impairs decision making and inhibits coordination. It makes you DUMB and CLUMSY, which can cause serious injuries if you, say, fall down stairs.

Legal Age to Buy or Sell Alcohol USA: 21 years

Legal Age to Buy or sell Alcohol AUST, NZ & UK: 18 Years

Legal Age to Buy or sell Alcohol CANADA: 18 – 19 Years depending on region.

At higher levels of consumption ALCOHOL can kill. It is a depressant. It acts on your central nervous system. It can STOP YOU BREATHING.

WORKSHEET PDF:  How Much Alcohol Would Kill You? WORKSHEET

WORKED EXAMPLE

1. Calculate the weight of (pure) alcohol or ethanol in the following standard drinks using the following information:

Now Ethanol =  0.79 gm/ml

More information @ alcohol.org.nz

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Mean, Median and Coffee: Busting an Urban Myth

April 21, 2017

 

A Fun Maths Exercise.

Students count steps.

No units of length used. 

You can find the free pdf worksheet  (included below) here.

Other fun middle school math(s) worksheets in the Hot Heels series at TpT include

Unit Rates, Angles, Ratios and Algebra.


There is a lot of maths and science behind coffee sloshing in a coffee mug. ‘The human stride has almost exactly the right frequency to drive the natural oscillations of coffee’ explains fluid physicists at the University of California at Santa Barbara. You will find their full explanation here.

 

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Tennis: Andy Murray is serving. How long have you got to return his serve?

January 19, 2017

 No. 1 UK tennis star Andy Murray is currently playing in the Melbourne Open. 

Mathspig often pops along to watch the tennis. 

andy-murray-serve-carine-06

Andy Murray’s Serve by Carineo6

Could you return Andy Murray’s serve? 

According to Wikipedia Andy Murray’s fastest serve speed is:

Andy Murray = 233 km/h (145 mph)

Keep in mind the fastest female tennis serve by Barbora Záhlavová-Strýcová is a very respectable 225 km/h (140 mph).

5a Mathspig Andy Murray

Go here to see why this simplified calculation works! 

Mathspig tested her reaction time here. TRY IT!

Mathspig’s best, best, best reaction time = O.33 sec

Could Mathspig return Andy Murray’s serve?

Nooooo!…………………………………………………………………….

I’d be hit in the head by a speeding tennis ball

before I even moved.

But I’m a pig. I got the best service GRUNT! Ha!

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1. Tube Cube

February 17, 2016

10 Amazing ways to see a cube

The Tube Cube is made from straws and hat elastic (Steps 1 – 9 below). The effect is quite amazing. The TUBE CUBE can then be used to make a CUBIC BUBBLE here.

Don’t show your Middle School students these instructions. Just give them access to some straws, hat elastic, rulers and scissors and ask them to make and then photograph their cube. That’s the challenge Mathspiggies. But the end result (See  Step 9) is awesome.

Mathspig Cube 1.1

Mathspig Cube 1.2

Mathspig Cube 1.3

Mathspig Cube 1.4

Mathspig Cube 1.5

Mathspig Cube 1.6

Mathspig Cube 1.7

Mathspig Cube 1.8

Step 8: The TUBE CUBE can be flatened into a hexagon.

Mathspig Cube 1.9

Step 9: The TUBE CUBE can be turned into an art work. This pic was taken in daylight.  The cube was positioned at an angle on a black sheet of paper with one corner set in Blu Tack. WOW!

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1. Hokey Pokey Algorithm

November 25, 2015

1a Mathspig Hokey pokey
Here’s the Hokey Pokey:

You put your right foot in
You take your right foot out
You put your right foot in
And you shake it all about
You do the hokey pokey
And you turn yourself around
That’s what it’s all about!

1b. Hokey Pokey

Why are algorithms as easy as the Hokey Pokey?

Because the Hokey Pokey is an algorithm or a set of steps that have to be taken to complete a task (see below) and the task is having fun and/or being really embarrassed by your parents in public. Whatever!

2. Algorithm 1
3. Algorithm 2
For more information about algorithms go to the Khan Academy here.

READABILITY ALGORITHM
We are going to look at texts including a maths test to check their readability. Here are just a few songs with their age and Grade readability scores:
Hokey Pokey (above) = Grade 3 = 9 yo
Frosty the Snowman = Grade 5 = 11 yo
Hello by Adele = Grade 5 = 11 yo
Wildest Dream = Taylor Swift = Grade 3 = 9 yo
Russians* Sting = Grade 6 = 12 yo
* Most complicated lyrics I know. Any other suggestions?