(music plays)

In a colourful TV studio, 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 WELCOME TO THE
HOMEWORK ZONE.
TODAY, I'M
GOING TO TALK TO YOU
ABOUT THE HUMAN
EYE.
THE EYE IS
SO IMPORTANT TO
OUR HUMAN
BODY.
IT REALLY
ALLOWS US TO SEE
THE WORLD
AROUND US,
AND WHAT I HAVE
BEHIND ME IS -
ON THE SMARTBOARD,
IS A CROSS-SECTION
OF THE HUMAN
EYE.
IF WE LOOK
AT THE EYE HERE,
THIS IS WHAT WE
WOULD NORMALLY
SEE WHEN
YOU'RE FACING A
PERSON LIKE MYSELF,
YOU SEE THE
FRONT OF
YOUR EYE.
WHAT YOU HAVE TO
UNDERSTAND IS
THE EYE IS
ACTUALLY A SPHERE,
ABOUT THE SIZE OF
A GOLF BALL
AND THAT'S
REPRESENTED HERE
ON THIS DIAGRAM.
SO IF WE LOOK AT THE
SIDE OF THE EYE,
THERE ARE SOME
REALLY IMPORTANT PARTS
THAT I WANT TO POINT
OUT THAT HELP US SEE.
THE FIRST PART
THAT I WANT TO
POINT OUT IS
THE LENS OF THE EYE.
ALMOST LIKE
A
MAGNIFYING GLASS
THAT'S RIGHT IN THE
CENTRE OF YOUR EYE,
IN YOUR EYEBALL.
AND THE OTHER
PART THAT I WANT
TO POINT OUT IS
THE SPACE IN
FRONT
OF THE LENS,
WHICH IS CALLED
THE PUPIL.
THAT'S THE SPACE
THAT ALLOWS LIGHT
TO TRAVEL INTO
YOUR EYE,
TO HELP
YOU SEE.
THE FINAL PART
THAT I WANT TO
SHOW YOU IS THE
RETINA AT THE BACK
OF THE EYEBALL AND
THAT'S THE
PART THAT TAKES
THE IMAGE OF THE EYE
AND HELPS YOU
SEE IT.
SO WHAT DO I
MEAN BY AN IMAGE?
WELL IF WE LOOK AT
THE EYE HERE,
LET'S PRETEND THAT
THE EYE IS LOOKING
AT A HUMAN PERSON -
THIS STICK FIGURE.
WHAT
HAPPENS IS AS
LIGHT TRAVELS THROUGH
THE PUPIL
OF
THE EYE,
DIRECTLY INTO
THE LENS,
THE LIGHT IS
REFLECTED AT
THE BACK OF
THE EYEBALL,
ON THE
RETINA.

Using a black marker, he draws two lines intersecting the eye.

He continues AND WHAT HAPPENS
HERE, ACTUALLY
IS AMAZING
BECAUSE AT THE BACK
OF THE
RETINA,
THE IMAGE THAT
YOU'RE LOOKING AT,
BELIEVE IT OR NOT,
IS UPSIDE DOWN.
THAT'S
RIGHT, TVO KIDS,
YOU ACTUALLY
SEE THINGS
UPSIDE DOWN,
AND THEN
FROM THE RETINA,
IT GOES ALONG A
SPECIAL NERVE
CALLED THE
OPTIC NERVE,
TO YOUR
BRAIN,
AND YOUR BRAIN
FLIPS THE IMAGE
RIGHT SIDE
UP.
SO WHEN YOU'RE
LOOKING AROUND
AT
THE WORLD,
YOU ACTUALLY ARE
SEEING THINGS
UPSIDE DOWN AND
YOUR BRAIN FLIPS
IT RIGHT
SIDE UP.
THAT'S HOW
YOUR EYE WORKS,
I'M TEACHER ALDO,
AND NOW YOU KNOW.