Proportions n measurement

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Using Proportions to Convert MeasurementsMs. Johnson8th Grade Math

+Systems of Measurement

Do Now: Write down as many words as you can that you associate with measurement

Quote of the day:

“Action is the real measure of intelligence.”

-Napoleon Hill

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We measure all sorts of quantities. Here are the main ones:


There are two categories we can place the words you just saw in. These two categories are called the two systems of measurement

METRIC and CUSTOMARY/STANDARD


There are two categories we can place the words you just saw in. These two categories are called the two systems of measurement

Quantity METRIC and CUSTOMARY/ STANDARD

Length meter inch, yard, foot, mileVolume liter gallon, quart, pint, hogshead

Mass/Weight gram pound, ounce Temperature Celsius Fahrenheit


If you notice, there are a lot of words for each customary/standard measurement.

The world is turning to all metric and soon these will be the only ones we need!Quantity METRIC and CUSTOMARY/

STANDARDLength meter inch, yard, foot, mileVolume liter gallon, quart, pint, hogshead



But how does the metric system work if they use so many less words than we do??




+Systems of MeasurementBecause they use prefixes to explain

smaller and larger units!! Such as:

milli, centi, deci, kilo


Length meter inch, yard, foot, mileVolume liter gallon, quart, pint, hogsheadMass/Weight gram pound, ounce Temperature Celsius Fahrenheit

+Systems of MeasurementPrefixes for Metric System

SMALLER BIGGER

milli (1/1000) ,centi (1/100), deci (1/10), kilo (1000)





Fun side note: This is the ipod nano

j N Nano- is another funny

metric prefix.

Nano- 10-9

j 1 Billionth …

REALLY tiny !

TINY

+Review of Proportions

Proportion: 2 ratios that are equal to each other

ex) 2:6 :: 3: 9 aka 2 = 3 6 9

Proportions n measurement

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