(music plays)

Aldo stands next to a wall touch screen showing the logo of the program. He is in her mid-thirties, clean-shaven with short blond hair. He wears glasses and a blue T-shirt with a print that reads "Home Work Zone."

He says HEY
TVO KIDS!
IT'S TEACHER
ALDO HERE,
AND TODAY, WE'RE
GOING TO TALK ABOUT
THE HUMAN
EYE.
ONE OF THE MOST
IMPORTANT PARTS
OF THE HUMAN EYE
THAT'S NECESSARY
TO SEE IS THE PART
RIGHT IN THE CENTRE,
THAT WE CALL
THE PUPIL.
THE PUPIL IS
THE DARK PART OF
THE EYE AND I'LL
SHOW YOU UP
HERE ON
THE SMARTBOARD.

A drawing of an eye pops up on the screen.

He draws the pupil and continues IT'S THAT PART RIGHT
IN THE MIDDLE.
NOW, HAVE YOU
EVER GONE FROM
INSIDE TO OUTSIDE ON A
BRIGHT SUNNY DAY?
WHAT HAPPENS TO
THAT DARK PUPIL
OF YOUR EYE?
IF YOU NOTICE, IT
ACTUALLY CONTRACTS,
IT GETS REALLY,
REALLY SMALL
BECAUSE WHAT YOUR
EYE IS TRYING TO DO
IS ALLOW A LITTLE BIT
OF LIGHT TO GET INTO
ITS EYE SO
THAT IT CAN SEE A
SHARP IMAGE OF THE
WORLD AROUND.
NOW, IF YOU
WERE TO TAKE THE
SAME EYE AND WALK
INTO ANOTHER ROOM
THAT'S REALLY,
REALLY DARK LIT,
WHAT HAPPENS IS YOUR
PUPIL ACTUALLY
GETS MUCH,
MUCH LARGER
AND THAT'S BECAUSE
IT'S TRYING
TO ALLOW A
MAXIMUM AMOUNT OF
LIGHT INTO
YOUR EYE,
SO THAT YOU CAN
SEE IN A DARK LIT ROOM.
SO THERE'S AN
EXAMPLE OF
HOW YOUR PUPIL
WORKS IN ORDER FOR
YOU TO SEE.
I'M TEACHER ALDO,
AND NOW YOU KNOW!