MEASUREMENT

What did people do long time ago before rulers, tape measures, metre sticks, ...etc?(pg.195)

Also, a FATHOM, which used to be used to measure the depth of water from a boatwas a stone attached to a piece of rope. It was thrown into the water and slowly measured by lengths of someone's outstretched arms as it came out. It is now standardized as 6 FEET.

There are TWO systems of measurement that are primarily used in the world:

METRIC (SI) IMPERIAL

* used mainly in Canada * used mainly in Europe, USA...

ITEM METRIC IMPERIAL

dist from Wpg to Brandon

length of pen

length of gym

Let's see if we're comfortable with which system to use and which units to useto estimate some common measurements:

ITEM METRIC IMPERIAL

dist from Wpg to Toronto

length of a car

width of your textbook

Let's see if we're comfortable actually estimating measurements of some fairlycommon items and distances:

HOMEWORKpg.198; #1­7

...and measure 5 things in this room, using a cubit, digit, span, hand, and fathom BEFORE YOU

LEAVE TODAY.

FOR THE REST OF THIS UNIT STARTING TOMORROW YOU NEED A RULER THAT LOOKS LIKE THIS...METRIC ON ONE SIDE AND IMPERIAL ON THE OTHER.