ability to customize a circle graph independently based upon scientific data

Ability to customize a circle graph Ability to customize a circle graph independently based upon independently based upon

scientific datascientific data

AIM: What is a circle graph?

DEFINITION:

•a CIRCLE GRAPH is a diagram which represents varying sections of DATA

•The DATA VALUES are expressed as a percentage

•diagramed as a circle.

AIM

: Wh

at is a circle graph

?

AIM

: Wh


?

Example: Who eats the Pizza at Mr. Z’s

• How many slice are in a pizza? 8

50%

25%

12.5%

• What Percentage of the total is 4 slices

• What percentage of the total is 2 slices

• What percentage of the total is 1 slice?

AIM

: Wh


?


50%

25%

12.5%

• Mr Z eats 4 slices. What percentage of the total pie is that?

• Mrs. Z eats 2 slices what percentage of the total pies is that?

• Alex eats one slice.

12.5%• Andie eats one slice.

AIM

: Wh


?

Mr. Z 50%


Mrs. Z 25%

Alex 12.5%

Andie 12.5%

AIM

: Wh


?

Example: How much Pizza?

Jon has 4 slices, Bill has 3, Sue has 1

Person Slice %

Jon 4 = 4/8

Bill 3 = 3/8

Sue 1 = 1/8

TOTAL 8

50%

37.5%

12.5%

AIM

: Wh


?

Jon 50%

Example: How much Pizza?

Jon has 4 slices, Bill has 3, Sue has 1

Bill 37.5%

Sue 12.5%

• Tips for Circle Graphs?

•Organize your data into a table FIRST!

•Figure about how many total sections of the “pie” there must be for your graph

AIM

: Wh

at is a Circle grap

h?

• Tips for Circle Graphs?

•Start at the center of the circle and draw your lines outward to the circumference

•Try to label each piece of the wedge in the wedge first. Draw a line if it does not fit

•Circle graphs need to have percentages!

•Don’t forget to Title your graph!

AIM

: Wh

at is a Circle grap

h?

CLASS EXAMPLE

Suppose you watched TV all day.

You saw 35 toy commercials, 25 cereal commercials, 25 fast food commercials, and 15 commercials for other products

What do you do first?

AIM

: Wh

at is a Circle grap

h?

•Step One: Put your Data in a Table

Number of Commercials

Type of Product Number of Adds

Toys 35

Breakfast Food 25

Fast Food 25

Other products 15

AIM

: Wh


?

•Step Two: Calculate the total number of TV commercials in your study

•35 + 25 + 25 + 15 = 100 Total Units

•100 Total Commercials in all categories

AIM

: Wh


?

•Step Three: Calculate the percentage of each section to the total number of units

•Toys 35/100

•Breakfast Foods 25/100

•Fast Foods 25/100

•Other 15/100

AIM

: Wh


?

35%

25%

25%

15%

AIM

: Wh


?

AIM

: Wh


?

Toys 35%

Kinds of Adds on Children’s TV Shows

Breakfast Food 25%

Other 15%

Fast Food 25%

Knap-Sack Brand

Brand Number of Boys

NIKE 20

FUBU 40

Polo 35

TARGET 15

Knap-Sack Brand

Brand Number of Boys

NIKE 20 20/110 * 100=18%

FUBU 40 40/110 * 100 = 36%

Polo 35 35/110 * 100 = 32%

TARGET 15 15/110 * 100 = 14%

Knap-sack brand vs Students

38%

33%

10%19%

NikeFubu

PoloTarget

A Team Population

Year Number

2004 110

2003 105

2002 85

2001 101

A Team Population

Year Number

2004 110 110/401 X 100 = 27.4%

2003 105 105/401 X 100 = 26.1%

2002 85 85/401 X 100 = 21.3%

2001 101 101/401 X 100 = 25.2%

Years vs. Number of Students

28%

26%

21%

25%

2004

20032002

2001

Sports Participation by Sex

Sport Number of Boys Number of Girls

Soccer 25 20

Baseball 20 30

Basketball 15 15

Tennis 8 16


Sport Number Boys

Number Girls

Soccer 25 20

Baseball 20 30

Basketball 15 15

Tennis 8 16

Total

45

50

30

24

149


Sport Number Boys

Number Girls

Soccer 25 20

Baseball 20 30

Basketball 15 15

Tennis 8 16

Total

45/149 * 100 = 30%

50/149 * 100 = 34%

30/149 * 100 = 20%

24/149 * 100 = 16%

149

Total Sports Participation

soccer30%

baseball34%

basketball20%

tennis16%

NMS Fundrasing

Activity Receipts Expense

Car wash 100 60

Breakfast 150 50

Bake Sale 125 25

Raffle 200 100

NMS Fundrasing


Car wash 100 60

Breakfast 150 50

Bake Sale 125 25

Raffle 200 100

Profit

40

100

100

100

340

NMS Fundrasing


Car wash 100 60

Breakfast 150 50

Bake Sale 125 25

Raffle 200 100

Profit

40/340 * 100 = 12%

100/340 * 100 = 29%

100/340 * 100 = 29%

100/340 * 100 = 30%

340

Profit from Each EventCar Wash

12%

Pancake30%

Bake Sale29%

Raffle29%

NMS Absences

Day 6th grade 7th 8th

Tuesday 5 10 6

Wednesday 7 10 6

Thursday 6 6 6

NMS Absences

Day 6th 7th 8th

Tuesday 5 10 6

Wednesday

7 10 6

Thursday 6 6 6

Total

21

23

18

62

NMS Absences

Day 6th 7th 8th

Tuesday 5 10 6

Wednesday

7 10 6

Thursday 6 6 6

Total

21/62 * 100 = 34%

23/62 * 100 = 37%

18/62 * 100 = 29%

62

Day vs Total Absences

34%

37%

29%

0%

6th7th8th

Class ACTIVITY:

Middle School Circle Graph page 70 (next page)

AIM

: Wh

at is a Circle G

raph

?

Homework:

INTERNET QUESTIONS

AIM

: Wh


?

ability to customize a circle graph independently based upon scientific data

Documents