WERA WERA

GRAPHICAL GRAPHICAL DISPLAY OF DATADISPLAY OF DATA

KATHY DORNHECKER AND KAREN HALLOSPI MATHEMATICS SPECIALISTS

DECEMBER 1, 2004

NEW AT GRADE 3NEW AT GRADE 3

Pictograph: Pictograph: A graph that uses pictures or symbols A graph that uses pictures or symbols

to compare data. Each picture may to compare data. Each picture may represent one data value.represent one data value.

Third Graders’ Favorite Fruits

Types of Fruit

Num

ber o

f St

uden

ts

Apples Oranges

Bananas

Kiwis = 1 student KEY :

Bar Graph: Bar Graph: A graph that uses the height or A graph that uses the height or

length of solid bars to represent length of solid bars to represent numbers and compare data.numbers and compare data.

Third Graders’ Favorite Fruits

Apples Oranges Bananas Kiwis

Types of Fruit

Num

ber o

f Stu

dent

s

2

4

10

9

8

7

6

5

3

1

0

NEW at GRADE 4NEW at GRADE 4

Pictograph: A graph that uses pictures or

symbols to compare data. Each picture may represent one to many data values.

Fourth Graders’ Favorite Fruits

Types of Fruit

Num

ber o

f St

uden

ts

Apples Oranges

Bananas

Kiwis

Key: = 5 Students

Line Plot: A graph that shows the frequency of

data on a number line.

HOURS OF TELEVISION WATCHED

+

+ +

+ + +

+ + + + +

+ + + + + +

+ + + + + +

10 15 205

Time (Hours)

NEW at GRADE 5NEW at GRADE 5

Circle Graph: Circle Graph: A graph that uses a divided A graph that uses a divided

circle to show pictorially how a circle to show pictorially how a total amount is divided.total amount is divided.

FIFTH GRADERS’ FAVORITE FOOD

BRUSSEL SPROUTS

MASHED POTATOES

PIZZA

25

ICE CREAM

FRUIT

25

7

7

18

18BAGELS

New at Sixth GradeNew at Sixth Grade

HistogramHistogram A bar graph that uses two scales, one for A bar graph that uses two scales, one for

equally spaced intervals (replaces equally spaced intervals (replaces categories) and one for frequencies.categories) and one for frequencies.

LEAF LENGTH ( cm)

00

50

168

0.0-1.9 2.0-3.9

Freq

uenc

yLENGTH OF BIG LEAF MAPLE LEAVES

2 4 6 10 12 14

Line GraphLine Graph A graph that uses one or more lines to A graph that uses one or more lines to

show changes in data when there is a show changes in data when there is a numeric value associated with equally numeric value associated with equally spaced points along a continuous number spaced points along a continuous number scale. scale.

TEMPERATURE FOR SAND GULCH, CA

TIME SINCE 6:00 AM (hr)

TEM

PER

ATU

RE

(DEG

REE

S F)

0 100

100

8642 12 14 16

80

60

40

20

New at Seventh GradeNew at Seventh Grade

Stem-and-Leaf Plot:Stem-and-Leaf Plot: A graph that organizes data from least to A graph that organizes data from least to

greatest using the digits of the greatest greatest using the digits of the greatest place value to group dataplace value to group data

STEM LEAF 1 1 4 6 8

2 0 2 3 5 9

3 1 3 3 5 6 7 8

4 0 2 3 4 5 6 7 8

5 1 2 4 6 7 8

6 0 1 2 4 6

7 1 2

AGES OF MY NEIGHBORS

2|3 represents 23

Box-and-Whisker Plot:Box-and-Whisker Plot: A graph that displays the A graph that displays the

median, quartiles, and median, quartiles, and outliers of a set of data. Also outliers of a set of data. Also called a box-plot.called a box-plot.

MASS OF GUINEA PIGS

5000

MASS (g)

Scatter Plot:Scatter Plot: A graph consisting of points, one for each A graph consisting of points, one for each

item being measured. The two item being measured. The two coordinates of a point represent the coordinates of a point represent the measures of two attributes of each item.measures of two attributes of each item.

SEVENTH GRADERS IN MR. HODGMAN’S CLASS

SLEEP PER NIGHT (hr)

MA

THEM

ATI

CS

TEST

SC

OR

ES (M

EAN

)

0 100

100