Teacher Troy stands in front of a blackboard. On a table in front of them there's a scale and different grocery items.

Teacher Troy is in his thirties, bald and with a shadow of a beard. He wears a blue Homework Help T-shirt.

He says HI, TVO
KIDS.
THIS IS TEACHER
TROY, AND WE'RE
GOING TO BE TALKING
ABOUT MEASUREMENT.
WHENEVER
YOU MEASURE,
YOU'RE ALWAYS
COMPARING.
SO MEASUREMENT IS
ALWAYS ABOUT COMPARING.
VERY, VERY,
IMPORTANT.
RIGHT HERE WE
HAVE A BUNCH OF
DIFFERENT
ITEMS.
AND IT'S
IMPORTANT TO KNOW
THAT WHEN WE'RE
MEASURING
DIFFERENT
ITEMS ESPECIALLY
IN YOUR KITCHEN OR
ANYWHERE YOU GO,
THERE'S ALWAYS
DIFFERENT STANDARDS
THAT YOU HAVE
TO LOOK AT.
SO FOR EXAMPLE, WE
LOOK AT A BOX OF MILK.
RIGHT HERE IT SAYS,
ONE LITRE.
AND THAT TELLS
YOU BECAUSE IT'S
A BIG QUANTITY
OF MILK.
THAT'S WHY
WE USE LITRES.
NOW IMPORTANTLY,
YOU'RE NOT
ALWAYS GOING TO
USE A FULL LITRE
OF MILK.
IF YOU POURED IT
INTO A GLASS
LIKE WE DID
HERE, YOU'RE GOING
TO GET INTO
MILLILITRES.
BECAUSE WE'RE
TALKING ABOUT PARTS
OF THAT BIGGER BOX
OF MILK.
LOOK AT
OUR COOKIES,
RIGHT HERE IT SAYS 350
GRAMS ON HERE.
LOOKING AT
A SOUP CAN.
A SOUP CAN IS A
LOT DIFFERENT.
OF COURSE IT
LOOKS LIKE WE CAN'T
REALLY SEE INSIDE
OF IT.
YOU SHAKE IT,
YOU CAN HEAR
THERE'S A
LIQUID IN THERE.
YOU LOOK AT IT IT'S
284 MILLILITRES.
SO BASICALLY
THERE'S MORE,
JUST A LITTLE MORE
SOUP IN HERE
THAN
THERE WAS MILK.
BUT THAT'S A
LIQUID.
CRACKERS,
YOUR FLOUR,
ALL OF THESE THINGS
HAVE DIFFERENT
STANDARDS AND
UNITS THAT ARE ON
THERE TO HELP YOU
KNOW HOW MUCH
IS
IN THERE.
SO I CHALLENGE YOU, GO
INTO YOUR KITCHEN.
GO AROUND
YOUR HOUSE.
LOOK FOR THINGS
THAT HAVE
DIFFERENT
UNITS ON THERE.
JUST TO GIVE YOU
AN IDEA ABOUT
OF THE TYPES
OF UNITS THAT WE DO
USE TO HELP US
UNDERSTAND
WHAT WE'RE
COMPARING OUR THINGS TO.
I'M TEACHER TROY AND
I HOPE THAT HELPS.