# Transcript: Student Session 8 | Aug 24, 1998

(music plays)The opening slate pops up with a countdown timer from 9 seconds and the title “TVO’s Virtual Classroom. Get connected.”

The “V” in “Virtual” is a tick, the “A” in “classroom” is an at sign with an extended loop that turns into a power cord with a plug at the end, and the first “O” in “classroom” is a spinning globe.

Lorraine and Stewart sit in the studio.

Lorraine is in her early thirties, with long wavy red hair with bangs in a low ponytail. She wears a striped sweater, an olive green blazer and a pair of small earrings.

She says GOOD AFTERNOON, AND WELCOME

TO TVO'S VIRTUAL CLASSROOM.

TODAY IS SESSION EIGHT

OF OUR MATH MYSTERY,

AND I'M LORRAINE GOWER.

FOR OUR AGENDA TODAY, WE

ARE GOING TO BE LOOKING AT:

A slate pops up with the caption “Agenda: 1- Positive exponents; 2- Scientific notation and 3- Order of operations.”

She says NOW, WHEN WE MENTION

EXPONENTS, WHO CAN CALL ME

AND LET ME KNOW WHAT

DOES THAT MEAN?

WHEN DO WE USE EXPONENTS,

AND WHY TO WE USE THEM?

BY PRESSING POUND NINE,

AGAIN, YOU CAN SHARE WITH US

WHAT IS AN EXPONENT,

WHY DO WE USE THEM?

AND AS WE NOTICE HERE, WE

HAVE QUITE A FEW CALLS.

WE'RE GOING TO TRY

A FEW CALLS AGAIN.

IF YOU WANT TO PRESS POUND

NINE, LET US KNOW WHAT YOU

THINK IS AN EXPONENT.

AND IF YOU LOOK AT OUR SCREEN

HERE, WE'LL QUICKLY LET YOU

KNOW HERE AN EXPONENT IS ONE WAY TO

WRITE LARGE NUMBERS USING FEWER SYMBOLS.

AND WE PURPOSELY HAD A LITTLE

BIT OF FUN WITH THE WORD

EXPONENTS BY ACTUALLY PUTTING

THE 'S' HERE AS AN EXPONENT. IT WAS ONLY IN THE 1600S

THAT PEOPLE BEGAN TO USE EXPONENTS TO

WRITE LARGE NUMBERS.

AND AS WELL, A LITTLE BIT OF

HISTORY ABOUT THE EXPONENT.

OKAY, NOW THAT WE KNOW A

LITTLE BIT ABOUT THAT, IF WE

LOOK AT THE SCREEN OVER HERE,

WE HAVE TEN TO THE POWER

OF THREE.

AND IF YOU REMEMBER FROM

YESTERDAY'S LESSON,

WE MENTIONED THAT TEN

HERE IS YOUR BASE NUMBER.

OKAY?

AS WELL AS, AND WHEN WE TALK

ABOUT THE BASE, THAT TELLS THE

NUMBER THAT IS TO BE

MULTIPLIED REPEATEDLY.

THEN WE HAVE HERE

THE EXPONENT.

IN THIS CASE,

IT'S THREE.

SO YOU MAY WANT TO WRITE THIS

DOWN IF YOU HAVE FORGOTTEN

THE NAMES, AND THIS WAY WE CAN

ALL TALK IN THE NAME LANGUAGE.

AND THE EXPONENT THREE TELLS

THE NUMBER OF TENS THAT ARE

TO BE MULTIPLIED.

SO WHEN WE SEE THIS, WE THINK:

10 TIMES 10 TIMES 10, WHICH WE ALL KNOW

IS 1000.

AND WE SAY, WHEN WE SEE

THIS PARTICULAR TEN HERE,

WITH A THREE UP ABOVE,

EITHER, WE MIGHT SAY 10 CUBED OR 10 TO

THE POWER 3.

YOU MIGHT WANT TO WRITE THIS

DOWN BECAUSE THROUGHOUT THE

LESSON I'M GOING TO BE TALKING

ABOUT EITHER TEN TO THE POWER

OF THREE, OR I MIGHT USE

THE TERMINOLOGY TEN CUBED.

AND THIS WAY YOU'LL UNDERSTAND

WHAT IT IS I AM TALKING ABOUT.

NOW, LET'S TRY HERE A FEW

NUMBERS THAT YOU WILL SEE HERE.

A slate appears with the caption “Explain the meaning of each power. A- 10 to the power of 4.”

Lorraine says YOU MIGHT WANT TO WRITE

IT DOWN IN YOUR NOTEBOOK.

AND, AGAIN, WE HAVE TO

REMEMBER THAT TEN IS OUR BASE,

AND FOUR IS OUR EXPONENT.

SO WHEN WE THINK OF

IT MATHEMATICALLY,

YOU SHOULD HAVE WRITTEN DOWN 10 TIMES 10

TIMES 10 TIMES 10. AND THAT IS EQUAL TO 10000.

YOU WOULD SAY THAT

TEN TO THE POWER FOUR.

AND IF WE TRY ONE MORE.

WE'LL CLEAR THIS ONE OFF.

The caption changes to “B- 6 to the power of 3.”

Lorraine says SIX IS THE BASE,

AND THREE IS CUBED.

IT WOULD SAY: 6 TIMES 6 TIMES 6, WHICH

EQUALS 216.

OKAY, SO AT THIS POINT, I'M

GOING TO HAVE YOU TRY OUT

A FEW QUESTIONS.

I WANT ALL OF YOU TO

PARTICIPATE, SO YOU WILL NEED

A PENCIL AND PAPER, AND I

WOULD LIKE YOU TO TRY OUT

THIS PARTICULAR QUESTION.

WHICH IS THE GREATER NUMBER? WE HAVE 7 CUBED OR 3

TO THE POWER OF 7.DO YOU THINK IT’S 7 CUBED? OR DO YOU

THINK IT’S 3 TO THE SEVENTH OR ARE THEY BOTH EQUAL?

TRY IT OUT.

YOUR ANSWER AT THIS POINT

SHOULD HAVE BEEN TWO.

BECAUSE IF WE THINK OF THESE,

AND YOU TO WRITE THEM OUT

MATHEMATICALLY, IT WOULD BE:

She writes “7 times 7 times 7” next to 7 cubed, and “ 3 times 3 times 3 times 3 times 3 times 3 times 3” next to 3 to the power of 7.

She says AND WE CAN SEE VERY QUICKLY,

THIS NUMBER, IF WE WERE TO DO

THE FULL CALCULATIONS,

IS MUCH GREATER.

WITH A PENCIL AND PAPER,

TRY THIS PARTICULAR NUMBER.

WHICH IS THE GREATER?

She shows a sheet of paper with the caption “Which is the greater number: 2 to the power of 4 or 4 squared? 1- 2 to the power of 4, 2- 4 squared or 3-equal.”

Lorraine says OKAY, YOUR ANSWER

SHOULD HAVE BEEN EQUAL.

ONCE AGAIN, QUICKLY, IF YOU

WANT TO GO OVER THAT...

2 TIMES 2 IS 4, 4 TIMES 2 IS 8 AND 8 TIMES 2

IS 16 AND 4 TIMES 4 IS 16.

IT WILL GET MORE DIFFICULT

She shows another question that reads “Which is the greater number: 5 cubed or 3 to power of 5?

Lorraine says SO WE GOTTA MAKE SURE

YOU UNDERSTAND THESE STEPS.

TWO TIMES TWO IS FOUR,

FOUR TIMES TWO IS EIGHT,

AND EIGHT TIMES TWO IS SIXTEEN.

FOUR TIMES FOUR IS

SIXTEEN AS WELL.

SO YOU SHOULD HAVE HAD EQUAL.

ONE MORE BEFORE WE TALK ABOUT

THE SCIENTIFIC NOTATION.

WHICH IS THE GREATER NUMBER?

AND NOW THAT OUR PHONES ARE

WORKING, IF YOU THINK IT'S

FIVE CUBED, PRESS ONE, IF YOU

THINK IT'S THREE TO THE POWER

OF FIVE PRESS TWO, IF

YOU THINK THEY'RE EQUAL,

PRESS THREE.

THEN I WILL SHOW

YOU THE BAR GRAPH.

I CAN SEE THAT ABOUT 60

PERCENT OF YOU HAVE ANSWERED

AT THIS POINT.

I WILL WAIT UNTIL

ABOUT 75 PERCENT.

OH, WONDERFUL,

ALMOST 100 PERCENT.

WE HAVE 90 PERCENT

AT THIS POINT.

LET'S LOOK AT OUR BAR GRAPH.

THE MAJORITY OF YOU ARE

FEELING THE ANSWER IS THREE TO

THE POWER OF FIVE IS GREATER

THAN FIVE TO THE POWER OF THREE.

AND, YES, YOU ARE

DEFINITELY CORRECT.

SO IF WE GO BACK TO THIS

QUESTION HERE, IF YOU ANSWERED

THE TWO, THAT IS CORRECT.

SO YOU HAVE TO PUT IT OUT

IN FULL, AND IF YOU HAVE A

CALCULATOR, THAT'S GREAT, IF

NOT, YOU CAN PUT IT OUT IN

YOUR HEAD WHERE IT WOULD BE

FIVE TIMES FIVE TIMES FIVE.

AND THIS WOULD BE THREE TIMES

THREE TIMES THREE TIMES THREE

FIVE TIMES.

AND THAT ONE IS

DEFINITELY GREATER.

RIGHT, NOW WE'LL BE TALKING

ABOUT SCIENTIFIC NOTATION.

SO YOU MAY WANT TO PUT THIS

IN YOUR NOTEBOOK AS WELL.

IF YOU HAVE A NUMBER 28

MILLION, WHO CAN CALL ME BY

PRESSING POUND NINE AND LET

ME KNOW HOW DO I PUT THIS

PARTICULAR NUMBER IN

SCIENTIFIC NOTATION.

AND I'M CALLING DAN OR

JEFF FROM FLAMBOROUGH.

HI.

The caller says HELLO?

Lorraine says HI.

AND HOW DO YOU PUT THIS NUMBER

IN SCIENTIFIC NOTATION?

The caller says 28 TIMES SIX.

Lorraine says 28 TIMES SIX.

WHY ARE YOU SAYING THAT?

DO YOU KNOW WHAT IT IS

TO PUT A NUMBER IN

SCIENTIFIC NOTATION?

The caller says YEAH.

Lorraine says OKAY, DO YOU WANT

TO TRY IT AGAIN?

The caller says 28 TO THE POWER OF 6.

Lorraine says 28 TO THE POWER OF 6.

WHY ARE YOU SAYING THAT?

SO YOU'RE THINKING 28 TIMES 28

TIMES 28, SIX TIMES IS GOING

TO GIVE YOU THIS NUMBER?

The caller says BECAUSE THERE'S SIX ZEROS?

Lorraine says OKAY.

INSTEAD, YOU'RE PROBABLY

TRYING TO SAY 28 TIMES 10

TO THE POWER OF SIX.

DO YOU SEE THAT?

NOW, FOR SCIENTIFIC NOTATION,

IT'S VERY IMPORTANT YOU

REALIZE, IF YOU DON'T MIND

STAYING ON THE LINE, YOU HAVE

TO PLACE A DECIMAL POINT AFTER

THE FIRST NON-ZERO DIGIT.

WHERE IS THE FIRST

NON-ZERO DIGIT?

WHICH NUMBER HERE?

The caller says THE TWO.

Lorraine says YES.

USUALLY THE NUMBER IS

OBVIOUSLY BETWEEN ONE AND TEN.

SO THEY'RE TELLING YOU TO

PUT A DECIMAL, AND EVERYBODY

MIGHT WANT TO DO THIS TO

REMEMBER, RIGHT AFTER THAT,

AND THEN YOU FIND ANY NUMBER

THAT FALLS THAT ISN'T A ZERO,

YOU ALSO PUT IT.

THEN YOU MULTIPLY BY TEN.

AND IF, TO KNOW THE POWER

HERE, THE EXPONENT OF THE TEN,

YOU HAVE TO GO BACK HOW MANY

TIMES TO GET TO THE DECIMAL?

ONE, TWO, THREE,

FOUR, FIVE, SIX.

The caller says NINE.

Lorraine says LET'S TRY THAT AGAIN.

ONE, TWO, THREE,

FOUR, FIVE, SIX.

The caller says SEVEN.

Lorraine writes down “2.8 by 10 to the power of 7.

Lorraine says THAT'S IT.

JUST SEVEN.

SO THAT'S WHAT A

SCIENTIFIC NOTATION IS.

DO YOU WANT TO TRY ONE MORE,

NOW THAT YOU HAVE AN IDEA?

The caller says SURE.

Lorraine says BECAUSE I CAN TELL

YOU UNDERSTAND.

HOW ABOUT THIS NUMBER?

AND EVERYBODY ELSE YOU CAN BE

TRYING THIS AS WELL BECAUSE

IN A FEW MINUTES YOU'RE GOING

TO BE USING YOUR PHONES TO

ANSWER A FEW OF THEM.

She shows a slate with the number 67500000.

Lorraine says REMEMBER, YOU HAVE TO

PUT A DECIMAL WHERE?

The caller says PARDON?

Lorraine says WHERE DO YOU HAVE

TO PUT THAT DECIMAL?

DO YOU REMEMBER?

YOU HAVE TO PLACE A DECIMAL

POINT AFTER THE FIRST

NON-ZERO NUMBER.

WHERE IS THAT?

The caller says SIX.

Lorraine says YEAH.

SO YOU ARE GOING TO

HAVE SIX WITH A DECIMAL.

LOOK AT THIS NUMBER.

WHERE DOES IT STOP

BEFORE THE ZEROS?

WHAT ELSE DO I

HAVE TO ADD HERE?

The caller says SEVEN AND FIVE.

Lorraine says NOW, I'M GOING TO MULTIPLY

IT WITH THE BASE TEN.

AND HOW MANY EXPONENTS.

I HAVE TO GO RIGHT BACK TO

WHERE THE DECIMAL WOULD BE.

LET'S TRY THAT.

ONE, TWO...

COUNT FOR ME.

The caller says THREE, FOUR, FIVE,

SIX, SEVEN, EIGHT.

Lorraine says WHY ARE YOU GOING BACK

HERE, IS THE DECIMAL HERE?

The caller says NO.

Lorraine says WHERE IS IT?

The caller says AFTER THE SIX.

Lorraine says THAT'S RIGHT.

SO LET'S TRY THAT AGAIN.

IT WILL BE ONE, TWO,

THREE... CONTINUE.

The caller says FOUR, FIVE, SIX,

SEVEN, EIGHT.

Lorraine says WHY ARE YOU GOING

WAY BACK HERE?

YOU ONLY GO TO WHERE

THE DECIMAL WILL BE.

SO THEREFORE...?

The caller says IT'S SEVEN.

Lorraine writes down “6.75 by 10 to the power of 7.”

Lorraine says THAT'S RIGHT.

TEN TO THE POWER OF SEVEN.

OKAY?

GREAT, THANKS VERY MUCH.

NOW, I WOULD LIKE TO

HAVE ALL OF YOU TRY THIS.

AND THIS WILL GIVE ME AN

UNDERSTANDING IF YOU UNDERSTAND

THIS PARTICULAR QUESTION.

SO YOU WILL REQUIRE

YOUR PHONES FOR THIS.

AND LET ME GET

MY QUESTION HERE.

NUMBER FOUR.

She shows a slate with the caption “Which is the correct scientific notation for 3700000? 1- 3.7 by 10 to the power of 5; 2- 3.7 by 10 to the power of 6 or 3- 37 by 10 to the power of 5.”

Lorraine says OKAY, HAVE A LOOK AT THIS.

REMEMBER WHAT WE TALKED ABOUT.

ALL RIGHT, 90... ALMOST

100 PERCENT HAVE ANSWERED.

IF WE LOOK AT THE BAR GRAPH,

THE MAJORITY OF YOU ARE SAYING

THE NUMBER TWO IS CORRECT.

AND LET'S HAVE A LOOK AT THAT.

YOU ARE SAYING IT IS THIS.

She circles option 2, 3.7 by 10 to the power of 6.”

Lorraine says AND IF WE LOOK AT THAT, AS

WE MENTIONED EARLIER,

YOU'RE RIGHT.

WE'RE SUPPOSED TO PUT THE

DECIMAL AFTER THE FIRST

NON-ZERO DIGIT,

WHICH IS THE THREE.

SO THREE POINT, AND

GO RIGHT TO THE SEVEN.

TIMES TEN WOULD BE YOUR BASE.

AND THEN WE GO BACK HOW MANY?

AND YOU'RE CORRECT, SIX.

VERY GOOD.

NOW, LET'S TRY ANOTHER ONE.

THEY'RE GOING TO GET A

LITTLE BIT MORE DIFFICULT

AS WE GO ALONG.

She shows another stale with 3 options. 1- 1470000, 2- 31750000 and 3- 95870200.

Lorraine says AND HERE, WHAT I'D LIKE YOU

TO DO IS TAKE A FEW MINUTES,

WRITE THE THREE ANSWERS YOU

SEE THERE, AND WHAT I WANT YOU

TO DO, FOR EXAMPLE, IS WRITE

OUT THE ANSWERS IN SCIENTIFIC

NOTATION FOR THREE

THESE IN YOUR NOTEBOOK.

WHEN YOU'RE DONE, CALL ME

PRESSING POUND NINE READY

TO GIVE ME THE ANSWER.

SO EVERYBODY DOES

QUESTION ONE, TWO, THREE.

YOU DO NOT USE YOUR

PHONES FOR THIS.

WRITE ON A PIECE OF PAPER AND

FIND THE SCIENTIFIC NOTATION.

WHEN YOU ARE DONE,

PRESS POUND NINE.

I'M CALLING NADEPA

FROM COLLEGE AVENUE.

IF YOUR PHONE IS RINGING, IF

YOU CAN LIFT IT UP, PLEASE.

Nadepa says HELLO?

Lorraine says HI.

COULD YOU SHARE WITH US NUMBER

ONE WHAT YOU HAVE FOR AN ANSWER?

Nadepa says “1.47 times 10 to the power of 6.”

Lorraine says OKAY.

VERY GOOD.

CAN YOU GIVE ME

NUMBER TWO AS WELL?

Nadepa says “3.175 times 10 to the power of 7.”

Lorraine says EXCELLENT.

THANK YOU VERY MUCH.

AND LET'S TRY SOMEONE

FROM USBORNE CENTRE,

IF YOUR PHONE IS RINGING.

The caller says HELLO?

Lorraine says HI.

CAN YOU GIVE ME THE ANSWER

FOR NUMBER THREE, PLEASE?

The caller says “9.58702 times 10 to the power of 7.”

Lorraine says NOW, WHY DO YOU THINK THAT

ONE IS A LITTLE BIT TRICKIER

THAN ONE AND TWO?

The caller says BECAUSE OF THE ZERO.

Lorraine says THAT'S RIGHT.

I WAS WONDERING IF SOME OF YOU

WOULD STOP RIGHT HERE RATHER

THAN STOP AT THE TWO.

AND VERY IMPORTANT THAT YOU GO

RIGHT TO THE NUMBER, TO HERE.

EXCELLENT.

THANKS VERY MUCH.

The caller says ALL RIGHT.

Lorraine says NOW, WE HAVE THREE MORE HERE.

TRY THEM QUICKLY, AND CALL ME

BY PRESSING POUND NINE ONCE

YOU HAVE THE ANSWERS.

She shows a slate with the options 4- 680000, 5- 11800 and 6- 46985000000.

Lorraine says ALL RIGHT, SO I'M CALLING

PERRY FROM COLLEGE AVENUE.

HI.

Perry says HELLO.

Lorraine says CAN YOU GIVE ME THE ANSWER,

PLEASE, FOR NUMBER FOUR?

Perry says “It’s 6.8 times 10 to the fifth.”

Lorraine says WHY DO YOU SAY

TEN TO THE FIFTH?

Perry says BECAUSE HE SAID SO.

Lorraine says WHY DO YOU THINK?

Perry says BECAUSE IF YOU COUNT THE

DECIMAL PLACES FROM THE ZERO

TO BETWEEN THE SIX AND

EIGHT, THERE IS FIVE.

Lorraine says THAT'S RIGHT.

VERY GOOD.

HOW ABOUT THE NEXT QUESTION.

CAN YOU GIVE ME THAT, AS WELL?

Perry says SURE, IT'S...

Perry says “1.18 times 10 to the fourth.”

Lorraine says GREAT.

THANKS VERY MUCH.

BYE.

AND LET US TRY SOMEONE

ELSE FROM COLLEGE AVENUE.

DAVID.

David says HELLO?

Lorraine says HI.

CAN YOU GIVE US AN ANSWER

FOR NUMBER SIX, PLEASE?

David says “It’s 4.6985 times 10 to the ninth.”

Lorraine says OKAY, IT'S...

VERY GOOD.

BRAVO.

OKAY, NOW IF YOU NOTICE, I'M

GOING TO PUT UP THESE TWO.

WHAT HAVE I DONE DIFFERENTLY?

AND I STILL WANT YOU TO FIGURE

OUT THE SCIENTIFIC NOTATION.

ONCE YOU'VE FIGURED IT OUT,

CALL ME BY PRESSING POUND NINE.

DONE SOMETHING A

LITTLE DIFFERENTLY.

She shows a slate with the options 7 -452 times 10 cubed and 8- 93.1 times 10 to the fourth.

Lorraine says SEE IF YOU CAN FIGURE IT OUT.

I'M CALLING USBORNE CENTRE.

The caller says HELLO?

Lorraine says HI.

NOW, HOW WOULD I PUT THIS

NUMBER, THAT ALMOST LOOKS LIKE

A SCIENTIFIC NOTATION,

HOW CAN I PUT IT IN

SCIENTIFIC NOTATION?

The caller says YOU JUST PUT 452 AND COUNT

THREE SPACES AND ADD ZERO.

Lorraine says KAY, DO YOU REMEMBER WHEN

WE TALKED ABOUT SCIENTIFIC

NOTATION, IT HAS TO LOOK

LIKE ONE OF THESE, WHERE THE

DECIMAL IS AFTER

THE FIRST NUMBER.

SO WHAT IS MISSING

HERE IN NUMBER SEVEN?

The caller says A DECIMAL.

Lorraine says YES.

SO HOW CAN I CHANGE THIS NOW

TO BE A SCIENTIFIC NOTATION?

The caller says YOU COUNT OVER THREE

SPACES AND ADD A ZERO.

Lorraine says OKAY, CAN YOU MENTION

TO ME, WHAT DO I DO HERE?

The caller says PUT IT IN FRONT OF THE FOUR.

Lorraine says IN FRONT OF THE FOUR?

The caller says BEHIND THE FOUR.

Lorraine says THAT'S RIGHT, SO IT'S GOING

TO BE 4 DECIMAL WHAT?

The caller says FIVE TWO.

Lorraine says OKAY, NOW WE'VE MOVED THE

DECIMAL, 'COS NORMALLY THE

DECIMAL WAS RIGHT HERE.

WE'VE MOVED IT TWO.

SO WHAT DO WE HAVE TO

DO TO THE EXPONENT HERE?

The caller says CHANGE IT TO A TWO?

FIVE.

Lorraine says THAT'S RIGHT.

YOU HAVE TO ADD TWO, RIGHT?

BECAUSE WE'VE JUST

MOVED IT OVER.

SO NOW WE'VE GOT TO ADD TWO.

AND IF YOU TRY THAT TO GET

AN ANSWER HERE IS RIGHT NOW

THIS WHOLE NUMBER IS 452.

WHEN WE MULTIPLY IT BY TEN

CUBED, WHAT HAPPENS TO IT?

HOW MANY ZEROS

DO WE ADD TO IT?

The caller says THREE.

Lorraine says YEAH.

ONE, TWO, THREE, LIKE THIS.

SO IT'S 452,000

THIS WHOLE THING.

LET'S VERIFY THIS ONE.

IF WE DO 4.52 TIMES TEN TO THE

FIVE, WE'RE MOVING OVER THE

DECIMAL FIVE TIMES

BY MULTIPLYING.

SO IT WOULD BE HERE, GO ONE,

TWO, THREE, FOUR, FIVE,

SO IS IT THE SAME NUMBER?

The caller says YES.

Lorraine says YES.

SO CAN YOU TRY THIS ONE?

WHAT WOULD THIS BE,

FOR NUMBER EIGHT?

The caller says NINE POINT THREE ONE.

Lorraine says HOW MANY TIMES HAVE

YOU MOVED THE DECIMAL?

The caller says ONCE.

Lorraine says SO WHAT DO WE

HAVE TO DO HERE?

He caller says ADD FOUR TO ONE.

FIVE.

Lorraine says THANKS VERY MUCH.

IN ORDER FOR IT TO BE A

SCIENTIFIC NOTATION, YOU HAVE

TO REMEMBER THE DECIMAL IS

RIGHT AFTER THE FIRST WHOLE

NUMBER, OKAY, OTHER THAN ZERO.

GREAT.

WELL, IF YOU DO HAVE ANY

MORE QUESTIONS ABOUT THAT,

I'M SURE YOUR TEACHER CAN HELP

YOU OUT, OR YOU CAN ASK ME

AT THE END OF THE CLASS.

WE'RE GOING TO

CONTINUE ON HERE.

WHEN WE TALKED ABOUT ORDER

OF OPERATIONS, YESTERDAY,

SOMEONE CALLED IN AND SAID

A SPECIAL NAME FOR ORDER OF

OPERATION TO REMEMBER.

CAN YOU CALL ME AND LET ME

KNOW WHAT THAT WORD IS

TO HELP US KNOW THE

ORDER OF OPERATIONS?

AND I'M CALLING THE PINES.

WITH PAM, I BELIEVE.

HI.

PAM FROM THE PINES, IF YOU CAN

LIFT UP YOUR PHONE, PLEASE.

WELL, WE'RE NOT GETTING TOO

MUCH OF A RESPONSE THERE.

HOW ABOUT WE TRY

ONE MORE HERE?

PERRY FROM COLLEGE AVENUE.

HI, DO YOU REMEMBER THE WORD

YESTERDAY THAT WE USED TO

REMEMBER THE ORDER

OF OPERATIONS?

Perry says BEDMAS.

Lorraine says YES.

IF WE LOOK AT IT OVER HERE,

QUICKLY, COULD YOU TELL ME

WHAT EACH LETTER PRESENTS?

IF YOU DO NOT HAVE THIS, I

SUGGEST STRONGLY YOU WRITE IT

DOWN BECAUSE YOU ARE

DEFINITELY GOING TO NEED IT

FOR THE NEXT QUESTIONS

I'LL BE ASKING YOU.

Perry says B stands for “Brackets,” E stands for “Exponents, D for “Division,” M for “Multiplication,” A for “Addition and S for “Subtraction.”

Lorraine says AND THERE AGAIN, IF YOU DON'T

HAVE TIME TO WRITE IT DOWN,

YOU CAN ALWAYS

ASK YOUR TEACHER.

ALSO, YESTERDAY, WE TALKED

ABOUT WHEN THE BASES ARE THE

SAME NUMBER, IF YOU HAVE

SOMETHING LIKE THIS...

She writes down 10 to the sixth by 10 to the fifth.

Lorraine says CALL ME AND LET ME KNOW

HOW DO I WORK THIS OUT.

AND WE ARE CALLING SOMEONE

FROM SAINT JOHN BREBEUF.

The caller says HELLO?

Lorraine says HI.

CAN YOU SHARE WITH US HOW

WOULD YOU FIGURE OUT THIS

PARTICULAR QUESTION

ON THE SCREEN?

Lorraine says DO YOU ADD THE EXPONENTS?

Lorraine says THAT'S RIGHT.

WHENEVER THERE IS A

MULTIPLICATION AND THE BASES

HAVE TO BE THE SAME, YOU CAN

ADD THE EXPONENTS, OKAY?

AND THEREFORE,

WHAT'S THE ANSWER?

The caller says TEN TO THE POWER

OF ELEVEN.

Lorraine says THAT'S RIGHT.

AND THIS, IF WE CAN REMEMBER,

WILL HELP US FOR THE NEXT

QUESTIONS I'LL BE ASKING.

CAN YOU STAY ON

THE LINE, PLEASE?

WHAT DO WE NOTICE ABOUT THIS

THAT'S DIFFERENT THAN WHAT

WE'VE JUST SEEN?

She writes down 10 to the sixth divided by 10 to the fifth equals…

The caller says DO YOU SUBTRACT THEM?

Lorraine says WHY ARE YOU SUBTRACTING THEM?

WHAT'S DIFFERENT?

The caller says BECAUSE YOU'RE DIVIDING.

Lorraine says THAT'S RIGHT.

NOW IT'S A DIVISION.

AGAIN, WHEN THE BASES ARE

THE SAME, THEN WE TAKE THE

EXPONENTS AND WE SAY: 10 6 minus 5 which would give us…

The caller says 10 to the power of 1?

Lorraine says Yes. THANKS VERY MUCH.

The caller says BYE.

Lorraine says BYE.

NOW, EVERYBODY IN YOUR

CLASS, IF YOU CAN TRY THIS.

NOW, I'M PURPOSELY GIVING

YOU AN ORDER OF OPERATIONS.

IT'S A LITTLE BIT DIFFERENT

THAN WHAT I'VE MENTIONED NOW.

TRY AND FIGURE IT OUT.

ONCE YOU HAVE THE ANSWER, CALL

ME BY PRESSING POUND NINE.

She shows a slate with the caption “3 times 10 to the fifth divided by 5.”

Lorraine says AND I'M CALLING MEGAN FROM

JACK MINER, IF YOU CAN LIFT

UP YOUR PHONE, PLEASE.

HI.

The caller says HI.

Lorraine says CAN YOU HELP ME WITH

THIS PARTICULAR QUESTION?

IF WE'RE THINKING OF BEDMAS,

THE ORDER OF OPERATIONS,

WHAT SHOULD I DO FIRST?

The caller says THE EXPONENT.

Lorraine says OKAY, EXPONENT.

SO HELP ME OUT.

THIS IS THREE TIMES, IT SHOULD

BE A ONE WITH HOW MANY ZEROS?

The caller says FIVE.

Lorraine says ONCE YOU SEE IT,

MAYBE IT WILL HELP.

WHAT IS THAT?

I'LL PUT A COMMA,

DOES THAT HELP?

OKAY, WHAT IS THAT NUMBER?

The caller says 100,000.

Lorraine says YEAH.

AND I STILL PUT

DIVIDE BY FIVE.

WHAT'S THE NEXT

STEP I SHOULD DO?

The caller says MULTIPLY IT BY THREE.

Lorraine says OKAY, WHAT DO YOU GET?

The caller says 300,000.

Lorraine says AND DIVIDE IT BY FIVE.

AND I WILL GET OUT

OF THE PICTURE.

AND WHAT'S THE NEXT STEP?

The caller says YOU DIVIDE IT BY FIVE.

Lorraine says AND WHAT'S THE ANSWER?

The caller says 6,000.

60,000.

Lorraine says FIVE GOES INTO

30 HOW MANY TIMES?

The caller says SIX.

Lorraine says SO IT WOULD BE 60,000.

VERY GOOD.

The caller says THEY GAVE ME THE

WRONG ANSWER.

Lorraine says YOU CAN DO IT.

YOU CAN DO IT.

ALRIGHT, LET'S TRY

THIS VERY QUICKLY.

ONCE AGAIN, CALL ME, AND LET

ME KNOW HOW TO WORK THIS OUT.

AND SOON, YOU'LL BE USING

YOUR PHONES TO ANSWER

SOME QUESTIONS.

She shows a second slate with the operation 3 squared plus 5.”

Lorraine says BUT BEFORE THAT, I

WANT TO HEAR FROM YOU.

AND WE ARE CALLING

SOMEONE FROM FLAMBOROUGH.

HELLO.

The caller says HI.

Lorraine says HOW DO I WORK THIS OUT IF I

THINK OF ORDER OF OPERATIONS?

The caller says THREE.

Lorraine says WHAT DO I HAVE TO DO FIRST?

The caller says THREE TIMES THREE.

Lorraine says OKAY, SO IT'S

EXPONENTS FIRST.

SO THREE TIMES THREE, AND

WE STILL THINK OF THE FIVE.

SO WHAT IS THREE TIMES THREE?

The caller says NINE.

Lorraine says AND PLUS FIVE.

The caller says 14.

Lorraine says OKAY, HANG ON BECAUSE

THAT WAS A BIT EASY.

HOW ABOUT THIS ONE, WHILE

THE REST OF YOU ARE THINKING

OF IT, AS WELL.

WHAT DO I DO FIRST?

She shows another slate with the operation (4 plus 6) squared minus 3.

The caller says FOUR PLUS SIX.

Lorraine says WHY IS THAT?

The caller says BECAUSE IT'S IN BRACKETS.

Lorraine says THAT'S RIGHT.

SO YOU DO THE BRACKETS FIRST.

SO WHAT IS FOUR PLUS SIX?

The caller says TEN.

Lorraine says OKAY, WHAT'S NEXT?

The caller says THE EXPONENT SIGN.

SO A THOUSAND.

OR A HUNDRED.

Lorraine says A HUNDRED.

SO WHAT IS A HUNDRED

DIVIDED BY THREE?

The caller says 33.3.

Lorraine says IS IT JUST 33.3?

The caller says IT GOES ON FOREVER.

Lorraine says THAT'S RIGHT.

HOW DO I SHOW THAT?

DO YOU REMEMBER?

The caller says THE DOT AT THE TOP.

Lorraine says THAT'S RIGHT.

VERY GOOD.

THANKS VERY MUCH.

ONE MORE CALL, AND AFTER THAT

YOU ARE GOING TO BE USING

YOUR PHONES TO

ANSWER THE QUESTIONS.

HOW DO I DO THIS ONE?

She shows another slate with the operation 9 squared minus 7 sauqred.

Lorraine says JUST A REFRESHER,

A GOOD REVIEW.

NOW, LET'S TRY SOMEONE

FROM THE PINES.

BRYDEN.

Bryden says HI.

Lorraine says CAN YOU HELP ME

WITH THIS ONE?

Bryden says SURE, IT'S...

Bryden says “9 times 9 minus 7 squared. 81 minus 49 equals 32.”

Lorraine says THANKS VERY MUCH.

OKAY, AT THIS POINT, I'D

LIKE YOU TO USE YOUR PHONES.

I'M GOING TO GIVE YOU A FEW

EXAMPLES, AND YOU ARE GOING

TO BE ANSWERING THEM.

ONE MOMENT, PLEASE.

HERE WE GO.

She shows a slate that reads “2 to the fifth minus 3 squared. Answer? 1- 32; 2-23 or 3-16.”

Lorraine says WE HAVE ABOUT 50 PERCENT.

I'LL WAIT UNTIL THERE

IS ALMOST A HUNDRED.

70 PERCENT.

THERE'S MORE OF YOU

THAT NEED TO ANSWER.

OKAY, ABOUT ANOTHER TEN

PERCENT SHOULD ANSWER.

OKAY, LET'S SEE WHAT

YOU'VE PUT DOWN OVER HERE.

THE MAJORITY OF YOU ARE

FEELING THE ANSWER IS TWO.

THERE ARE STILL SOME

OF YOU UNCLEAR ABOUT THAT.

LET'S LOOK AT THE

QUESTION AGAIN.

AND YOU ARE CORRECT

IF YOU DID PUT TWO.

AND ONCE AGAIN, YOU HAVE TO

SAY, TWO TIMES TWO BECAUSE YOU

DO THE EXPONENTS FIRST, TWO

TIMES TWO TIMES TWO TIMES TWO

TIMES TWO, MINUS THREE TIMES

THREE, AND IT DOES GIVE YOU

AN ANSWER OF 28.

AND ONCE AGAIN, I WILL

GIVE YOU ANOTHER QUESTION.

AND YOU'LL REQUIRE YOUR

PHONES TO ANSWER THIS.

She shows another slate that reads “2 times 7 squared. Answers? 1- 98; 2- 196 or 3- 89.”

Lorraine says HAT'S A LITTLE

EASIER OF AN ANSWER.

THEN IT'S GOING TO

GET A LITTLE HARDER.

OKAY, WE HAVE 75 PERCENT

OF YOU HAVE ANSWERED.

A FEW MORE.

THAT'S GOOD.

I'M PLEASED WITH

WHAT I'M SEEING.

AND IF WE LOOK AT THE BAR

GRAPH, THERE'S A GREAT

MAJORITY OF YOU THAT FEEL

THE ANSWER IS NUMBER ONE.

SO LET'S GO BACK

TO OUR QUESTION.

IF WE THINK ABOUT WHAT WE ARE

SAYING HERE, WE FIRST HAVE

TO DO THE EXPONENTS.

SEVEN TIMES SEVEN IS 49, 49

TIMES TWO DOES GIVE YOU 98,

SO BRAVO.

THAT'S GREAT.

AND AGAIN, NOW THEY ARE

GOING TO GET A LITTLE MORE

DIFFICULT, THE QUESTIONS.

SO YOU'LL PROBABLY REQUIRE A

PENCIL AND PIECE OF PAPER TO

ANSWER THE NEXT QUESTION.

HERE IT IS.

She shows another slate with the caption “10 squared minus bracket nine minus 3 bracket squared. Answers? 1- 120; 2- 64 or 3-54.”

Lorraine says OKAY, WE HAVE 50 PERCENT

OF YOU HAVE ANSWERED.

WE'LL GIVE YOU A FEW MORE

MINUTES TO PUT THAT TOGETHER.

I THINK SOME OF YOU STILL NEED

TO WRITE IT ALL OUT BECAUSE

I'M NOT SEEING ALL

THE CORRECT ANSWERS.

OKAY, THERE'S STILL TEN PERCENT

OF YOU THAT NEED TO ANSWER.

GREAT.

NOW LET'S LOOK AT THE ANSWERS

HERE FROM THE BAR GRAPH.

THE MAJORITY OF YOU ARE

FEELING IT IS NUMBER TWO,

THE ANSWER.

LET'S GO BACK TO THE QUESTION.

SO THEREFORE, YOU

THINK IT'S 64.

WHO CAN CALL IN AND SHARE

WITH US WHY IT IS 64?

CALL ME NOW BY PRESSING POUND

NINE, AND SHARE WITH US WHY

YOU PUT DOWN 64.

I'M CALLING SOMEONE

FROM FLAMBOROUGH.

IF YOUR PHONE IS

RINGING -- HELLO?

The caller says HI.

Lorraine says CAN YOU TELL US

HOW WE GET TO 64?

WHAT DO WE NEED TO DO HERE?

The caller says YOU DO THE BRACKETS FIRST.

Lorraine says OKAY.

LET ME PUT THAT LIKE THIS

SO WE CAN WRITE UNDERNEATH.

TELL ME, HOW DO I DO

THE BRACKETS FIRST?

The caller says NINE MINUS THREE.

Lorraine says I'LL WRITE IT OUT IN FULL.

NINE MINUS THREE BEING?

The caller says SIX.

Lorraine says AND CONTINUE.

The caller says THEN YOU DO THE EXPONENTS.

Lorraine says THAT'S RIGHT.

The caller says 10 TO THE POWER

OF TWO IS 100.

AND SIX TO THE

EXPONENT OF TWO IS 36.

Lorraine says AND THEREFORE,

OUR ANSWER IS?

The caller says 64.

Lorraine says THAT'S GREAT.

THANKS VERY MUCH.

The caller says YOU'RE WELCOME.

Lorraine says OKAY, LET'S GIVE YOU ANOTHER

QUESTION AND SEE HOW YOU

ANSWER WITH YOUR PHONES.

AND THE QUESTION BEING:

She shows another slate with the question “10 minus two brackets squared. Answers? 1- 64; 2- 108 or 3- 48.”

Lorraine says THIS SHOULDN'T

TAKE YOU VERY LONG.

I'M PLEASED WITH

WHAT -- WELL...

I WAS HOPING TO GET

100 PERCENT OF YOU

WITH THE RIGHT ANSWER.

OKAY, 70 PERCENT

HAVE ANSWERED.

LET'S TRY FOR MORE THAN THAT.

OKAY, FIVE MORE PERCENT.

OKAY, IF WE LOOK AT OUR BAR

GRAPH, THE MAJORITY OF YOU ARE

FEELING IT IS NUMBER ONE.

SOME OF YOU ARE STILL

UNCLEAR ABOUT THIS.

SO EITHER IT'S AN ERROR ON

YOUR PART, OR YOU ARE NOT

WRITING IT OUT IN ORDER

TO FIGURE THE ANSWER.

SO IF WE LOOK AT THIS QUICKLY,

IF WE THINK OF THE BEDMAS,

WE HAVE TO FIRST DO THE

BRACKETS, SO TEN MINUS TWO

IS EIGHT, AND EIGHT SQUARED,

EIGHT TIMES EIGHT GIVES YOU 64.

SO IF THAT'S WHAT

YOU PUT DOWN, BRAVO.

LET'S TRY ONE MORE AGAIN.

PLEASE DON'T USE

YOUR PHONES JUST YET.

I WILL QUICKLY

GET THAT ONE ON.

AND HERE WE GO.

She shows another slate with the question “5 plus 6 squared divided by 3 squared. Answers? 1- 18; 2- 6 or 3- 9.”

Lorraine says PLEASE WRITE THIS ONE OUT.

I'D LIKE TO SEE 100

PERCENT CORRECT.

70 PERCENT OF YOU HAVE

ANSWERED, SO I'M STILL WAITING

FOR 30 PERCENT OF YOU.

DON'T FEEL RUSHED.

OKAY, LET'S LOOK

AT THE BAR GRAPH.

THE MAJORITY OF YOU ARE

FEELING IT IS THREE.

WE STILL DON'T HAVE 100

PERCENT OF YOU FEELING

THE ANSWER IS THREE.

LET'S LOOK BACK

AT OUR QUESTION.

WHO CAN CALL IN AND SHARE WITH

US WHY THE ANSWER IS NINE?

COULD YOU CALL IN PLEASE AND

EXPLAIN TO ME, AND TO THE

REST, WHY THAT IS.

SOMEONE FROM COLLEGE AVENUE.

The caller says HELLO?

Lorraine says HI.

The caller says HELLO.

Lorraine says HI, CAN YOU SHARE WITH US

HOW YOU PUT THAT TOGETHER?

The caller says OKAY.

36 DIVIDED BY NINE IS

FOUR, PLUS FIVE IS NINE.

Lorraine says OKAY.

BUT THIS IS NOT EQUAL

TO 36 DIVIDED BY NINE.

SO WHAT DO I NEED TO DO?

YOU'RE TELLING ME THIS IS

EQUAL TO 36 DIVIDED BY NINE.

AND THAT'S INCORRECT.

WHAT DO I NEED TO DO?

The caller says OH, FIVE.

Lorraine says YES.

AND YOU WERE SAYING THE

EXPONENT FIRST, GOOD.

DIVIDED BY NINE.

AND WHAT'S THE ANSWER HERE?

OOPS, SORRY.

FIVE PLUS, WHAT'S THIS?

The caller says FOUR.

Lorraine says THAT'S RIGHT.

AND THAT GIVES YOU?

The caller says NINE.

Lorraine says EXCELLENT.

AND THAT'S WHY WE HAD THE

ANSWER NINE OVER HERE.

GREAT, THANKS VERY MUCH.

OKAY, I CAN SEE AT THIS POINT

YOU ARE DOING VERY WELL.

A FEW OF YOU ARE STILL

UNCLEAR, SO THAT MIGHT BE A

GOOD CHANCE FOR YOU TO USE THE

SOFTWARE PLATO AND JUST GET A

BETTER UNDERSTANDING OF IT SO

IT CAN BE THAT MUCH EASIER.

YOU WILL REQUIRE THIS KIND

OF INFORMATION FOR YOUR

EXERCISES ONE AND TWO THAT

WILL BE DUE FOR THURSDAY.

I HAVE STILL A FEW MORE ORDERS

OF OPERATIONS I WOULD LIKE

YOU TO TRY ON YOUR PHONES.

AND IF I USE -- I NEED TO

GET TO MY QUESTION HERE.

HERE WE GO.

She shows another slate with the question “8 plus bracket 9 times 2 minus 6 bracket squared. Answer? 1- 46; 2- 94 or 3-152.”

Lorraine says LET'S SEE, LET'S TRY AND GET

A HUNDRED PERCENT OF YOU

GETTING CORRECT ANSWERS.

TAKE YOUR TIME.

INTERESTING.

VERY INTERESTING RESULTS.

TAKE YOUR TIME SOME OF YOU.

OKAY, FIFTY PERCENT

OF YOU HAVE ANSWERED.

WE'LL GIVE YOU A

FEW MORE SECONDS.

OKAY, GREAT.

NOW, WHAT DO WE SEE

HERE FROM THE BAR GRAPH?

THE MAJORITY OF YOU ARE

FEELING IT IS NUMBER THREE,

BUT WE CAN STILL TELL SOME OF

YOU ARE UNCLEAR ABOUT THAT.

IF WE LOOK AT THE QUESTION

HERE, YOU ARE SAYING

IT IS THREE.

COULD YOU CALL IN PLEASE AND

QUICKLY EXPLAIN TO US WHY

IT IS 152?

AND LET US TRY SOMEONE HERE

FROM JACK MINER PUBLIC SCHOOL.

BRANDY GOLDEN, I BELIEVE.

IF YOUR PHONE IS RINGING AT

JACK MINER, WOULD YOU PLEASE

LIFT IT UP.

HI.

Brandy says HI.

Lorraine says CAN YOU SHARE WITH US

HOW THIS BECOMES 152?

WHAT DO I NEED TO DO FIRST?

Brandy says NINE TIMES TWO.

THE ONES IN THE BRACKETS.

Lorraine says THAT'S RIGHT.

WE'VE GOT TO DO

THE BRACKET FIRST.

SO NINE TIMES TWO IS?

Brandy says 18.

Lorraine says AND 18 MINUS SIX IS?

Brandy says 12.

Lorraine says YEAH.

AND THAT WHOLE NUMBER

WILL BE SQUARED.

SO EIGHT PLUS...

WHAT'S 12 TIMES 12?

Brandy says 144.

Lorraine says YEAH.

AND ALL THAT EQUALS?

Brandy says 152.

Lorraine says GREAT.

THANKS VERY MUCH.

Brandy says OKAY.

Lorraine says BYE.

NOW, DO WE THINK WE CAN

GET 100 PERCENT OF YOU

ANSWERING CORRECTLY?

LET'S TRY IT OUT.

I'M GOING TO GIVE YOU

SOMETHING WE TALKED ABOUT A

LITTLE BIT EARLIER, WHERE

ONCE AGAIN YOU ARE GOING TO

REQUIRE YOUR

PHONES TO ANSWER.

AND HERE'S THE QUESTION:

She shows another question that reads “10 squared times 10 to the power of 1 plus 12. Answer? 1- 1012; 2- 898 or 3- 64.”

Lorraine says AND WE ALMOST HAVE A HUNDRED

PERCENT HERE WHO HAVE ANSWERED.

GIVE YOU A FEW MORE SECONDS.

OKAY, LET'S LOOK

AT OUR BAR GRAPH.

THE MAJORITY OF YOU ARE

FEELING IT IS ANSWER NUMBER ONE.

AND IF WE GO BACK TO THE

QUESTION, ONCE AGAIN, COULD

YOU CALL AND LET US KNOW

WHY YOU FEEL IT IS 1,012?

LET'S TRY SOMEONE

FROM JACK MINER.

MARCUS.

HI.

Marcus says HELLO.

Lorraine says CAN YOU SHARE WITH ME HOW

YOU PUT THIS ONE TOGETHER?

Marcus says YOU TAKE TEN TO THE EXPONENT

TWO, THAT'S 100, AND TIMES

10 TO THE POWER OF ONE.

Lorraine says OKAY, IS THERE A WAY WE

LEARNED EARLIER THAT WOULD BE

A LITTLE BIT FASTER WHEN YOU

HAVE THE SAME BASE NUMBER

THAT'S MULTIPLIED, WHAT CAN

WE DO WITH THE EXPONENTS?

Marcus says YOU CAN ADD THEM.

Lorraine says YEAH.

SO WE COULD HAVE TEN TO THE

CUBED PLUS 12, WHICH IS

SIMILAR TO WHAT YOU SAID.

SO THIS BECOMES WHAT?

Marcus says 1,000.

Lorraine says YEAH.

PLUS 12 GIVES YOU?

Marcus says 1,012.

Lorraine says YEAH.

SO IF WE LOOK OVER HERE,

THAT'S EXACTLY WHAT WE HAVE

AS THE ANSWER.

THANKS VERY MUCH.

Marcus says OKAY.

Lorraine says GREAT.

LET'S TRY THAT ONE MORE TIME.

JUST TO LET YOU KNOW, AT MY

END, WHEN YOU'RE CALLING IN

WITH YOUR PHONES AND SO ON, I

HAVE ACCESS TO LOOK INTO MY

DATABASE, AND KNOW EXACTLY

WHAT YOU'VE ANSWERED.

THIS WAY, IF I SEE YOU ARE

HAVING ABSOLUTELY NO PROBLEMS,

THAT'S WONDERFUL, WE

LET YOUR TEACHER KNOW.

AND IF THERE ARE DIFFICULTIES

AND YOUR TEACHER WANTS TO

KNOW THAT INFORMATION, WE

CAN LET THEM KNOW, AS WELL.

SO I JUST HAVE TO LOOK AT YOUR

NAME AND SEE WHAT YOU HAVE

BEEN ANSWERING.

SO LET'S TRY IT ONE MORE TIME.

AND IF YOU NEED A PENCIL AND

PAPER, THAT WOULD BE GREAT

BECAUSE WE'D LIKE TO SEE ALL

OF YOU UNDERSTANDING THIS

CONCEPT SO YOU CAN DO YOUR

HOMEWORK WITH NO DIFFICULTIES.

HERE IT IS.

She shows another slate with the question “10 to the power of 8 divided by 10 to the fifth plus 12. Answer? 1- 1002; 2-1012 or 3- 1010.”

Lorraine says OKAY, 50 PERCENT OF YOU HAVE

ANSWERED AT THIS POINT.

LET'S SEE IF WE CAN GET

ANOTHER 50 PERCENT TO ANSWER.

OKAY, IF WE LOOK AT OUR BAR

GRAPH, THE MAJORITY OF YOU

FEEL IT IS TWO.

AND, AS WE CAN SEE, THE NUMBERS

INCREASE THERE FOR TWO.

LET'S LOOK AT THE QUESTION.

AND YOU ARE CORRECT IF

THAT'S WHAT YOU PUT.

AND ONCE AGAIN, YOU WOULD HAVE

TO DO YOUR EXPONENTS FIRST.

BUT ONE NICE THING WE KNOW

BECAUSE THE BASES ARE THE

SAME, AND IT'S BEING DIVIDED,

WE JUST HAVE TO GO EIGHT

MINUS FIVE, SO TEN TO THE

POWER OF THREE, WHICH IS A

THOUSAND, PLUS 12,

GIVES YOU 1,012.

OKAY, NOW WE ARE GOING TO LET

YOU KNOW, FOR YOUR HOMEWORK,

AS YOU ARE ALL AWARE:

A slate pops up and reads “Homework. Exercise 1 and 2 for Thursday.”

Lorraine says AND STEWART AND MYSELF WILL BE

GOING OVER THOSE QUESTIONS TO

MAKE SURE YOU UNDERSTAND THEM.

AT THIS POINT, I'D LIKE

TO THANK YOU FOR ALL

YOUR PARTICIPATION.

YOU DID VERY WELL.

IF YOU HAVE ANY QUESTIONS,

I'LL BE HERE FOR THE NEXT FIVE

MINUTES, AND YOU MAY CALL

IN AND I WILL ANSWER

YOUR QUESTIONS.

AND I WILL JUST PUT

UP THE HOMEWORK AGAIN.

AND HAVE A NICE FEW DAYS, AND

WE'LL SEE YOU ON THURSDAY.

BYE.

HI, DO YOU HAVE A QUESTION?

The caller says HELLO?

Lorraine says HI, DO YOU HAVE A QUESTION?

The caller says NOT REALLY.

Lorraine says OKAY, THANKS, BYE-BYE.

HI, DO YOU HAVE A QUESTION?

The caller says HOW COME WITH THE SCIENTIFIC

NOTATION THEY DON'T JUST PUT --

Lorraine says THEY DON'T PUT WHAT?

OKAY, WELL, DAVID, MAYBE

WE'LL TRY YOU AGAIN, BUT

UNFORTUNATELY WE LOST PART

OF YOUR QUESTION THERE.

WE'RE GOING TO TRY SOMEONE

FROM SAINT JOHN BREBEUF.

HELLO?

The caller says HI.

Lorraine says YOU HAVE A QUESTION?

The caller says I DON'T UNDERSTAND

THE MAYAN NUMBERS.

Lorraine says THE MAYAN NUMBERS.

LET ME GET THAT HANDY HERE.

JUST TO MAKE SURE WE ARE

LOOKING AT THE SAME THING.

NOW, DO YOU KNOW EXACTLY

WHICH QUESTION IT IS?

The caller says YOU HAVE TO PUT IT

INTO OUR NUMERALS.

Lorraine says OKAY, IT'S EXERCISE...?

The caller says ONE.

Lorraine says NUMBER?

The caller says B.

She grabs an assignment sheet with the exercise on the Mayan numbers.

Lorraine says OH, I SEE.

WITHOUT SHOWING YOU

MY ANSWERS HERE.

OKAY, IF WE LOOK AT THAT,

AND I'LL BRING IT UP

JUST A TAD CLOSER.

WHEN YOU HAVE A NUMBER, YOU'RE

TALKING ABOUT THE NUMBER DOWN

HERE THAT WE'RE

SUPPOSED TO DO?

THE ONE BELOW.

The caller says YEAH, AND ON THE OTHER SHEET.

Lorraine says FOR THIS PARTICULAR ONE, YOU

HAD TO CONTINUE YOUR CHART

THAT LOOKS LIKE THIS.

DID YOU DO THAT?

The caller says YEAH.

Lorraine says OKAY.

WITH THAT CHART, WHEN YOU

LOOK AT, DO YOU KNOW WHAT

TWO DOTS MEAN?

The caller says TWO.

Lorraine says THAT'S RIGHT.

AND YOU KNOW THIS MEANS ZERO,

AND THIS MEANS 16 AND SO ON.

WHEN YOU LOOK AT THE BOTTOM

OVER HERE, JUST LIKE ANY OF

THESE DOWN HERE, IF YOU LOOK

AT THE BOTTOM, IT WILL, WHAT

DOES THIS REPRESENT

RIGHT HERE?

The caller says THAT'S 11.

Lorraine says THAT'S RIGHT, 11.

SO YOU MULTIPLY THE LOWEST

THING HERE WITH THE UNIT ONE.

SO IF YOU LOOK AT ONE DOWN

HERE, YOU ARE GOING TO

MULTIPLY WHATEVER

THAT IS WITH ONE.

OKAY?

THEN, IT GOES TO 20.

SO WHAT DOES THIS REPRESENT?

The caller says SEVEN.

Lorraine says SEVEN.

SO THEN YOU MULTIPLY BY 20.

REMEMBER, IT'S SUPPOSED TO

BE 20 TIMES 20, BUT WHY DID

THEY PUT 360?

DO YOU REMEMBER?

The caller says NO.

Lorraine says IF YOU READ IN YOUR STORY,

IT HAD SOMETHING TO DO WITH

THE CALENDAR.

REMEMBER, 18 MONTHS

IN THE CALENDAR YEAR.

SO THEY CHOSE TO GO 360.

SO WHAT DOES THIS MEAN?

The caller says 16.

Lorraine says YEAH, 16 TIMES 360.

AFTER THAT, YOU GO

TO THE NEXT ONE.

WHICH IS ZERO TIMES THIS.

AND THEN WHAT IS THIS?

The caller says TWO.

Lorraine says AND THEN YOU TAKE THE 144.

IF YOU ALWAYS FOLLOW THOSE

NUMBERS IN ORDER, YOU WILL DO

THE SAME HERE WITHOUT

SHOWING YOU MY ANSWERS.

YOU WILL TAKE THIS ONE, AND

YOU WILL MULTIPLY IT WITH WHAT?

The caller says ONE.

Lorraine says THEN YOU'LL TAKE THIS

ONE AND MULTIPLY IT WITH?

The caller says 20.

Lorraine says AND THEN?

The caller says 360.

Lorraine says AND THEN?

The caller says 7,200.

Lorraine says THAT'S RIGHT.

AND IF YOU HAVE MORE OF THEM

LIKE THIS ONE, YOU'LL HAVE TO

DO THE SAME AND

INCREASE IT FROM THAT.

DOES THAT ANSWER

YOUR QUESTION?

The caller says YEAH.

Lorraine says OKAY, GREAT.

THANKS.

AND FROM FLAMBOROUGH.

The caller says HELLO?

Lorraine says YOU HAVE A QUESTION?

The caller says NO.

Lorraine says YOU DON'T.

OKAY, THANKS.

TRY SOMEONE ELSE

FROM FLAMBOROUGH.

The caller says HELLO?

Lorraine says HI.

DO YOU HAVE A QUESTION?

The caller says NO.

Lorraine says YOU DON'T.

OKAY, GREAT.

THANKS.

AND LET'S TRY SOMEONE, BRYDEN,

I BELIEVE, FROM THE PINES.

The caller says HELLO?

Lorraine says DO YOU HAVE A QUESTION?

The caller says YES, ON EXERCISE TWO FOR THE

INCAS NUMBER SYSTEM, DO THE

NUMBERS START AT THE BEGINNING

OF THE ROPE NEAR THOSE LITTLE

CIRCLES AT THE TOP?

OH, OKAY.

I'LL SHOW IT TO YOU, IF THIS

IS THE ONE YOU ARE LOOKING AT,

TO MAKE SURE WE'RE TALKING --

THIS PAGE YOU ARE TALKING ABOUT?

She shows an assignment sheet with two quipus.

The caller says YUP.

Lorraine says OKAY, LET ME JUST

TAKE IT OUT A BIT HERE.

The caller says DO THE NUMBERS START

AT THE TOP OF THE ROPE?

Lorraine says NO, IT STARTS DOWN HERE.

SO THIS WOULD BE YOUR UNITS.

THEN YOU'LL HAVE TENS, THEN

HUNDREDS, AND THEN THOUSANDS.

The caller says OKAY.

Lorraine says OKAY?

THEN YOU COUNT IT FROM THERE.

GREAT.

BYE.

AND LET ME TRY HERE FROM

FLAMBOROUGH ONCE AGAIN,

ANY QUESTIONS FOR THURSDAY?

The caller says HELLO?

Lorraine says HI, DO YOU HAVE A QUESTION?

The caller says I HAVE SOMETHING TO SAY.

FOR THE EXPONENTS, ISN'T IT TO

THE EXPONENT, NOT TO THE POWER?

Lorraine says TO THE EXPONENT, YOU CAN SAY

EITHER ONE, OR TO THE POWER.

THEY ARE BOTH CORRECT.

OKAY?

YOU CAN SAY TEN TO THE

POWER OF SIX OR WHATEVER.

OKAY, THANKS.

AND ONE MORE CALL

FROM FLAMBOROUGH.

HI.

YOU'RE MY LAST

CALL FOR THE DAY.

DO YOU HAVE A QUESTION?

The caller says NO, MY QUESTION

WAS JUST ASKED.

Lorraine says OH, IT WAS JUST ANSWERED.

OKAY, GREAT.

WELL, HAVE A NICE

COUPLE OF DAYS.

BYE-BYE.

WE'LL SEE YOU ON THURSDAY.

BYE-BYE.

The slate with the homework assignment appears again.

Another slate pops up with the caption “Next Session. Monday, April 27. 1 PM to 2 PM.”