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1.1 Imperial Measurements. MFM2P. In the beginning. Back in the day (1000s of years ago) when people built things themselves, it wasn’t necessary to measure things because everyone did it themselves. I need a bolt as wide as thumb. What you talkin’ ‘bout Willis?.

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1.1 Imperial Measurements

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1 1 imperial measurements

1.1 Imperial Measurements

MFM2P


In the beginning

In the beginning

  • Back in the day (1000s of years ago) when people built things themselves, it wasn’t necessary to measure things because everyone did it themselves.

I need a bolt as wide as thumb


What you talkin bout willis

What you talkin’ ‘bout Willis?

  • However, projects became more complicated, it became necessary to have others work different parts, therefore they had to standardize measurement.

moron…

Sir, I don’t know what your thumb looks like…


Birth of imperialism

Birth of Imperialism

  • So they decide to take the most popular guy, measure his thumb and call it an inch. This guy was the King!

An inch was the width of a thumb

A footwas the size of the kings foot, which eventually became 12 inches.

A yard was the distance from the tip of a man's nose to the end of his outstretched arm. Eventually, 3 feet became a yard


Other systems

Other systems

  • The British empire used this method to devise measurements for mass, volume and time. For instance a pound was equal to 7002 troy grains

  • Other countries developed their own units of measure

7001? That’s stupid! A pound should be 7002…

Your sands are no match for our stones!

What’s a troy grain? We use wheat seeds


A new day

A new day

  • Eventually (in the 1800s), the French developed the Metric System

  • In the 1970s many commonwealth (former British colonies) switched to the metric system.


Imperial systems

Imperial Systems

  • Today, the entire world is metric, except for the US, Myanmar and Liberia


The imperial empire

The Imperial Empire

Unfortunately, the US has a HUGE influence on our culture. This influences the way we communicate and think about various systems of measurement.

Time is in seconds, minutes, hours, days,etc…

How tall are you?  5 feet 10 inches

How much do you weight?  210 lb

Football field  yards

Fluids (Guinness) pint


Going the distance

Going the distance…

Length

inches (inor “), foot (ftor ‘), yard (yd), mile (mi)


Pump up the volume

Pump up the Volume!

Volume

Teaspoon (tsp), tablespoon (tbsp), fluid ounce (floz), cup (c), pint (pt), quart (qt), gallon (gal)


Weight

Weight

Weight

Ounce (oz), pound (lb), ton (tn)


Miscellaneous

Miscellaneous


Imperial units

Imperial Units


If 1 yd 3ft then 4 yd 2 ft 2

If 1 yd = 3ft, then 4 yd2 = ft2

1 yd

3ft

4 yd2

2 yd

6 ft

36 ft2

2 yd

6 ft


Converting feet to inches

Page 3 Question 3

Converting Feet to Inches

1 foot = 12 inches

8.5’ = 8.5 feet

2’ 7” = 2‘ + 7”

3’ = 3 feet

= 8.5 x 12”

= (2 x 12”) + 7”

= 3 feet x 12 inches

1 foot

= 36”

= 102”

= 24” +7”

= 31”


Converting inches to feet

Page 3 Question 4a

Converting Inches to Feet

1 foot = 12 inches

71 inches =

How many times does 12 go into 71?

71 inches = 5 feet + ??? inches

71 inches = 5 feet + 11 inches

5’ = 60”

71” -60” = 11”


Word problems

Page 3 Question 6

Word Problems

The school gymnasium floor needs to be resurfaced. Hardwood flooring costs $6 per square foot plus $2.50 per square foot for installation. The gym measures 180ft by 220ft.

a)Size of gym = (length) (width)

= (220 ft) (180 ft)

= 39 600ft2 Therefore the gym is 39 600ft2.

b) Cost to buy hardwood = ($6.00/ft2) (39 600ft2)

= $237 600The cost of the hardwood is $237 600.

c) Cost of Installation = ($2.50/ft2) (39 600ft2)

=$99 000Therefore the cost of installation is $99 000


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