Posts Tagged ‘real world’

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7. Maths is really SCARY!

September 13, 2017

The Complaint: Maths is really SCARY!………………

………………………………………………………………………….

The Cause:

Some students think maths is always right or wrong and they are scared of making mistakes.

………………………………………………………………………….

The Solution:

You are going to do maths with no right or wrong answers. You just start and see what results you get.

………………………………………………………………………….

7a. Dad Jokes: The positive, the negative and the number line

Yeah! It’s a Dad Joke!

7b.  Middle School Maths Photo Scavenger Hunt  

Whoa! Totally CRAZY! Skiing a HELIX.

It looks like a Fibonacci Spiral, but that is an illusion. Steps on a spiral staircase are always the same length!

NO! This is not your homework. No stunts. 

Just show us where you see maths in the world.

7c. Crack a Security Code for Middle School…… Yes! Really!

Prime Numbers vs The Hackers!

Note: The last challenge involves guess work. Maybe, an intelligent guess, but, maybe, not.

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7a. Dad Jokes: The positive, the negative and the number line

September 13, 2017

The Complaint: Maths is really SCARY!…………….

………………………………………………………………………………….

The Cause:

Some students think maths is always right or wrong and they are scared of making mistakes.

………………………………………………………………………………….

The Solution:

Conduct your own DAD JOKE survey. No right or wrong. Answers will vary from group to group.………………………………………………………………………………….

Topics:

Postive, negative integers, number line.

 

The Challenge

More Math Jokes for Mathy Folks here.

PLAIN TEXT Dad Joke Maths Survey Worksheet pdf UK & Australia

PLAIN TEXT Dad Joke Math Survey Worksheet pdf USA

Dad Joke List 1 pdf

Dad Joke List 2 pdf

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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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8a. Calculate Your Daily Iron Intake

August 19, 2017

The Complaint

8a: When will I EVER use this maths?

The Cause:

Students doing repetitive text book exercises without using maths to solve REAL WORLD problems.

The Solution:

You are going to use this maths NOW.

Calculate Your Daily Iron Intake

TOPICS: Decimals, %, weight units (METRIC) 

Some information you need. 

Iron (Chemical symbol:Fe) content in food is recorded in mg because there are only small amounts of iron in food.

1 g = 1000 mg

eg. 1 paper clip = 0.5 g = 500 mg

     Iron in 2 teaspoon peanut butter = 0.19 mg

Full Page Worksheet PDF:Daily Iron Intake Calculation Work Sheet

WORKED EXAMPLE: Breakfast

More info here

 

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The Simple Maths of a Car used as a Weapon … METRIC units

February 3, 2017
NIce Truck Attack 2016 The Independent, UK

Nice Truck Attack 2016 The Independent, UK

Berlin Christmas Maraket Attack 2016, ABC

Berlin Christmas Maraket Attack 2016, ABC

Melbourne Car Attack 2017

Melbourne Car Attack 2017.

Cars (and trucks) have been used as weapons by drivers purposefully driving into crowds including:

2014: Saint-Jean-sur-Richelieu, Quebec

2014 : Jerusalem, Israel.

2016: Nice, France

2016: Berlin, Germany

2017: Jerusalem, Israel

2017: Melbourne, Australia.

What does the maths tell us?

Melbourne is Mathspig’s home town. The car attack killed, tragically, 6 people and injured many more. The question many seem to ask is:

Why can’t people get out of the way?

Look at the video below of the Melbourne car. It doesn’t appear to be going that fast. But the maths tells a different story. You need quite a distance between you and a car travelling at approx 60 kph to have enough time to run clear. (See calculations below)

How fast do you react?

We will set your reaction time at 0.4 sec. This allows time for you to react and turn. If you want to test your reaction time go here. But remember you have to turn as well.

How fast would you run?

According to the Telegraph, UK, the average human can run at 15.9 mph (25.6 kph) and the National Council of Strength and Fitness 15 mph (24.1kph), which Mathspig has rounded off to 25 kph.

car-used-as-weapon-1
car-used-as-weapon-2
car-used-as-weapon-3

How do you escape a car travelling at 60 kph towards you when you are less than 9 m away?

Jump upwards!

You might reduce the impact and even go over the roof.

car-used-as-weapon-4

car-used-as-weapon-5
car-used-as-weapon-6

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The Simple Math of a Car used as a Weapon … USA units

February 3, 2017
NIce Truck Attack 2016 The Independent, UK

Nice Truck Attack 2016 The Independent, UK

Berlin Christmas Maraket Attack 2016, ABC

Berlin Christmas Maraket Attack 2016, ABC

Melbourne Car Attack 2017

Melbourne Car Attack 2017.

Cars (and trucks) have been used as weapons by drivers purposefully driving into crowds including:

2014: Saint-Jean-sur-Richelieu, Quebec

2014 : Jerusalem, Israel.

2016: Nice, France

2016: Berlin, Germany

2017: Jerusalem, Israel

2017: Melbourne, Australia.

What does the math tell us?

Melbourne is Mathspig’s home town. The car attack killed, tragically, 6 people and injured many more. The question many seem to ask is:

Why can’t people get out of the way?

Look at the video below of the Melbourne car. It doesn’t appear to be going that fast. But the math tells a different story. You need quite a distance between you and a car travelling at approx 35 mph to have enough time to run clear. (See calculations below)

How fast do you react?

We will set your reaction time at 0.4 sec. This allows time for you to react and turn. If you want to test your reaction time go here. But remember you have to turn as well.

How fast would you run?

According to the National Council on Strength and Fitness the average human can run at the speed of 15 miles per hour for short periods of time.

car-used-as-weapon-7-usacar-used-as-weapon-8car-used-as-weapon-9

How do you escape a car travelling at 35 mph towards you when you are less than 27 ft away?

Jump upwards!

You might reduce the impact and even go over the roof.

car-used-as-weapon-10car-used-as-weapon-11car-used-as-weapon-12