Archive for the ‘Decimals’ Category

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6. You’re either Good at Maths or You’re Not

September 20, 2017

The Complaint:  

You’re either Good at Maths or You’re Not!………………

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The Cause:

Most students who said “I can’t do maths’ when I was teaching, didn’t do maths. They talked, penned a tattoo on their arm. Or scribbled in the text book. Today they read texts or play games on their phones under table or fall asleep.

………………………………………………………………………….

The Solution: 

There is no point arguing. Students must ‘see’ they can do maths.  

Do something that grabs their attention, something counterintuitive. Here is one of the BEST revision projects ever for middle school maths students. Remember, the best way to learn something is to teach it.

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Project MATHS SLAM WORKSHEET plain txt PDF

Project MATHS SLAM WORKSHEET plain txt USA PDF

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Project Maths Slam

Project Maths Slam USA TERMS

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8. When will I EVER use this maths?

August 19, 2017

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

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The Cause:

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

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The Solution:

You are going to use this maths NOW

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

August 16, 2017

The Complaint

8b: 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…………………..

……………………………………………………………………………….

How much blood can YOU lose and survive?

………….METRIC UNITS

Remember the best calculator to use is the WEB 2.0 Calculator as it shows the worked equation as you go. 

CAREERS: It’s not only health workers who need to understand these calculations, but also creatives running health campaigns online, on TV, radio and in magazines.

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

PDF WORKSHEET HERE:How much blood can you lose and still survive? WORKSHEET METRIC

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

August 16, 2017

The Complaint

8b: 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…………………..

……………………………………………………………………………….

How much blood can YOU lose and survive?

………….USA Units

Remember the best calculator to use is the WEB 2.0 Calculator as it shows the worked equation as you go. 

CAREERS: It’s not only health workers who need to understand these calculations, but also creatives running health campaigns online, on TV, radio and in magazines.

TOPICS: Decimals, %, algebra, vol, weight units (USA UNITS) 

PDF WORKSHEET HERE:How much blood can you lose and still survive? WORKSHEET USA UNITS

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The Terrifying Maths of Running from a Bear … Metric Units

July 17, 2017

METRIC UNITS below. USA UNITS here.

BEAR STATISTICS

Grizzly Bear

Weight:   250kg

Height:   250cm

Top Speed: 56kph  =   16 m/sec

More bear stats here. 

Brown Bear

Weight:  680kg

Height:   250cm

Top Speed: 35kph  = 10m/s

More bear stats here.

Comparing these speeds to the fastest man on earth, Usain Bolt:

Usain Bolt:

Top speed: 243kph =   12m/s

So Usain Bolt could out run a Brown Bear but NOT a Grizzly!

Bears are NOT as dangerous as:

In fact more Americans die choking on their own vomit each year than a re killed by bears.

More death stats here.

But bears are very fast so Park Rangers recommend the following survival tactics:

More bear survival info here.

REF: Dog helps save hikers after grizzly chases them for 20 minutes here.

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The Terrifying Math of Running from a Bear … USA Units

July 17, 2017

USA UNITS below. METRIC UNITS here.

BEAR STATISTICS

Grizzly Bear

Weight:  550 lb        

Height:  8’ 2”   

Top Speed: 35 mph  =   51 ft/s    

Brown Bear

Weight:  1,500 lb       

Height:  8’ 2”              

Top Speed: 22 mph  =  32 ft/s     

Comparing these speeds to the fastest man on earth, Usain Bolt:

Usain Bolt:

Top speed: 27 mph  =   40 ft/s     

Bears are not dangerous:

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In fact, more Americans die each year from choking on their own vomit than are killed by bears.

More death stats here

Nevertheless, bears are very fast. So you can see why Park Rangers offer the following advice:

More information at Mountain Nature.

The reason for waiting until the bear is 15 ft away is to make sure the spray doesn’t disperse in the air. If the Pepper Spray is too spread out it will not stop the bear.

Ref: Dog helps save hikers after grizzly chases them for 20 minutes.