﻿(music plays)

Sarah stands next to a wall touch screen showing a word problem, a two-column table and a multiplication example. She is in her mid-twenties, with short straight brown hair. She wears a blue T-shirt with a print that reads "Home Work Zone" and black tights.

She says HEY,
TVO KIDS,
I'M TEACHER SARAH,
AND TODAY,
I'M GOING TO
TEACH YOU A NEW WAY
TO MULTIPLY, USING
A MATRIX.
THIS IS A
REALLY SIMPLE,
EASY WAY TO DO
MENTAL MATH.
LET'S GIVE IT
A SHOT TOGETHER.
SO FOR EXAMPLE,
I HAVE
MY MULTIPLICATION
QUESTION, WHICH IS 55
MULTIPLIED BY
EIGHT.
SO NOW I NEED TO
FIND THE PRODUCT.
IN ORDER TO USE
THIS METHOD,
THE FIRST THING
I HAVE TO DO IS
BREAK MY NUMBERS
DOWN BY USING
PLACE VALUE,
THE TENS COLUMN AND
THE ONES COLUMN.
LET'S START
WITH MY 55.
IF I TAKE A LOOK
AT MY 55,
I KNOW THAT
THIS FIVE IS IN
THE TENS COLUMN,
AND THAT
THAT
REPRESENTS 50.
SO I'M GOING TO
WRITE THAT
VALUE
RIGHT HERE.
NOW I'M GOING TO
TAKE A LOOK
AT THE
ONES COLUMN.
I SEE THERE'S
A FIVE IN
THE
ONES COLUMN,
BUT THAT FIVE ONLY
REPRESENTS FIVE.
I'M GOING TO
WRITE THAT NUMBER
RIGHT HERE.
NOW I CAN MOVE ON
TO MY NEXT NUMBER.
EIGHT.
THIS ONE'S
EASY.
IN THE ONES PLACE,
SO I SIMPLY WRITE MY
NUMBER DOWN HERE.
THE NEXT THING
THAT I HAVE TO DO
IS I HAVE TO MULTIPLY
THE NUMBERS
TOGETHER AND
WRITE MY PRODUCT
IN THE
COLUMN.
SO 50 MULTIPLIED
BY EIGHT.
I KNOW THAT EIGHT
TIMES FIVE IS 40,
AND WHEN I'M
MULTIPLYING BY TENS,
MY ZERO.
SO IF EIGHT
TIMES FIVE IS 40,
THEN EIGHT TIMES
50 IS 400.
WRITE THAT
NUMBER HERE.
PERFECT.
NOW I DO THE SAME
THING FOR
MY
NEXT COLUMN.
I MULTIPLY FIVE
BY EIGHT,
WHICH
IS 40.
WRITE IT DOWN
IN HERE,
AND I AM
ALMOST DONE.
THE NEXT THING THAT
I HAVE TO DO
IS SUM UP, OR
NUMBERS IN MY
COLUMN.
SO I HAVE
400 PLUS 40,

She writes the steps mentioned in purple and continues AND THAT GIVES