PROGRESSION OF CALULCATOR PRICES FROM THE 1950S TO PRESENT
ELECTRONIC POCKET CALCULATORS
1.
PRICE INCREASE?!
UNLIKE THE HAND-HELD POCKET CALCULATOR, THE GRAPHING CALCULATOR
INCREASED IN PRICE AS IT CONTINUED TO DEVELOP. MEMORY BECAME GREATER
AND MORE FUNCTIONS WERE AVAILABLE AS NEW MODELS CAME OUT.
CURRENT PRICE.
THE AVERAGE CURRENT PRICE FOR A GRAPHING CALCULATOR IS AROUND $85.00.
THESE CALCUALTORS ARE REQUIRED FOR BASIC MATH COURSES--SUCH AS
ALGEBRA I, WHICH IS AVAILABE AS EARLY AS MIDDLE SCHOOL.
LESS THAN $10?!
IN JUST TEN YEARS THE CALCULATOR WENT FROM A LARGE, HEAVY MACHINE
TO A LIGHT, POCKET SIZED TOOL. ALMOST EVERYONE COULD NOW AFFORD THE
CALCULATOR AND ONE, IF NOT MANY COULD BE FOUND IN EVERY CLASSROOM.
ELECTRONIC CALCULATOR
SLIDE RULE
GRAPHING CALCULATOR
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CALCULATOR
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SLIDE RULE & CURTA
THROUGHOUT THE 50s AND 60s, THE SLIDE RULE WAS THE SYMBOL OF ENGINEERS. THE CURTA WAS THE FIRST
MECHANICAL CALCULATOR AND DID NOT REALLY COMPETE WITH THE SLIDE RULE BECAUSE IT WAS SO EXPENSIVE.
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WHILE THE SLIDE RULER BECAME OBSOLETE IN THE 70s, THE CURTA CALCULATOR STILL LIVED IN THE 80s. WHILE
ELECTRONIC POCKET CALULATORS WERE BEING USED IN EDUCATION, THE CURTA CONTINUED BEING USED IN CAR RALLIES.
‘03
‘07
‘09
‘11
CALCULATING & THE FUTURE
ALTHOUGH THE CALCULATOR HAS NOT CHANGED SIGNIFICANTLY FROM THE 70S & 80S, THE
TECHNOLOGY AND FUNCTIONS OF THE CALCULATOR CONTINUE TO BE DEVELOPED.
THE 70S WERE MAINLY FOCUSED ON CHEAPER & SMALLER FOUR FUNCTION CALCULATORS. IN THE 80S,
SCIENTIFIC & GRAPHING CACLUALTORS EMERGED FRO MORE A EDUCATIONAL AND PROFESSIONAL USE.
THE 1970S WERE AN IMPORTANT TIME FOR THE DEVELOPMENT OF THE CALCULATOR. THESE DEVELOPMENTS CONTRIBUTED SIGNIFICANTLY TO THE USE OF THE MECHANICAL CALCULATOR IN EDUCATION.
‘50
‘94
2010
2000-2009
SCIENTIFIC & GRAPHING CALCULATOR REVOLUTION
ELECTRONIC POCKET CALCULATOR REVOLUTION
‘48
‘90
TOP 5 GRAPHING
CALCULATORS OF 2011
1950-1959
SLIDE RULE& CURTA
CALCULATORS
THE HISTORY OF THE HANDHELD CALCULATOR
THROUGH EDUCATION
$2000
$1000
$500
$450
$400
$350
$300
$250
$200
$150
$100
$50
$20
$10
$0
TI-84 PLUS
FIRST INVENTED IN 2004
$132.63
HP 50g
FIRST INVENTED IN 2006
$107.49
TI-89 TITANIUM
FIRST INVENTED IN 2004
$119.98
TI-83 PLUS
FIRST INVENTED IN 1999
$73.00
TI-NSPIRE
FIRST INVENTED IN 2007
$89.99
2.
3.
GRAPHING CALCULATOR
HOW TO GRAPH
A FUNCTION
1.
2.
3.
4.
PENCIL AND PAPER
Y = 2X + 1
WRITE OUT THE
FUNCTION
2(0) + 1 = 1
X
Y
PLUG IN X-COORDINATES
0 1 2 3
1 3 5 7
MAKE A TABLE
OF VALUES
Y
PLOT THE COORDINATES
X
PENCIL AND PAPER
CALCULATIONS
WRITTEN CALCULATIONS HAVE BEEN DONE EVER SINCE THE FIRST
NUMERAL SYSTEM WAS CREATED. AT FIRST, CALCULATIONS WERE
AS SIMPLE AS KEEPING TALLY MARKS.
THEY HAVE NOW EVOLVED INTO COMPLEX
FORMULAS THAT CAN EXPLAIN ALMOST
ANYTHING.
AND EVEN THOUGH THE CALCULATOR CONTINUES TO BE A SIGNIFICANT
TOOL FOR STUENTS, TEACHERS, AND ALL OF SOCIETY, PENCIL AND PAPER
CALCULATIONS WILL NEVER GO AWAY.
THESE HAND CALCULATIONS ARE
TAUGHT AND PRACTICED FROM
PRESCHOOL TO HIGHER EDCUATION.
IT IS ALWAYS IMPORTANT TO UNDERSTAND
THE BASICS OF MATHEMATICS, AND TO CHECK
ONE’S WORK.
WHILE HAND CALCULATIONS CAN BE MORE
TIME CONSUMING AND CONFUSING, THEY ARE
STILL CRUCIAL TO THE EDUCATIONAL FIELD.
5.
Y
CONNECT THE POINTS
TO CREATE THE GRAPH
X