# Ability to customize a circle graph independently based upon scientific data AIM: What is a circle graph?

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Ability to customize a circle graph independently based upon scientific 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: What is a circle graph?

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: What is a circle graph? Example: Who eats the Pizza at Mr. Z’s 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: What is a circle graph? Mr. Z 50% Example: Who eats the Pizza at Mr. Z’s Mrs. Z 25% Alex 12.5% Andie 12.5%

AIM: What is a circle graph? Example: How much Pizza? Jon has 4 slices, Bill has 3, Sue has 1 Person Slice % Jon4= 4/8 Bill3=3/8 Sue1=1/8 TOTAL8 50% 37.5% 12.5%

AIM: What is a circle graph? 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: What is a Circle graph?

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: What is a Circle graph?

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: What is a Circle graph?

Step One: Put your Data in a Table Number of Commercials Type of Product Number of Adds Toys35 Breakfast Food25 Fast Food25 Other products15 AIM: What is a circle graph?

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: What is a circle graph?

Step Three: Calculate the percentage of each section to the total number of units Toys 35/100 Breakfast Foods 25/100 Fast Foods25/100 Other15/100 AIM: What is a circle graph? 35% 25% 25% 15%

Toys 35% Kinds of Adds on Children’s TV Shows Breakfast Food 25% Other 15% Fast Food 25%

Knap-Sack Brand BrandNumber of Boys NIKE20 FUBU40 Polo35 TARGET15

Knap-Sack Brand BrandNumber of Boys NIKE20 20/110 * 100=18% FUBU40 40/110 * 100 = 36% Polo35 35/110 * 100 = 32% TARGET15 15/110 * 100 = 14%

Knap-sack brand vs Students

A Team Population YearNumber 2004110 2003105 200285 2001101

A Team Population YearNumber 2004110 110/401 X 100 = 27.4% 2003105 105/401 X 100 = 26.1% 200285 85/401 X 100 = 21.3% 2001101 101/401 X 100 = 25.2%

Years vs. Number of Students

Sports Participation by Sex SportNumber of BoysNumber of Girls Soccer2520 Baseball2030 Basketball15 Tennis816

Sports Participation by Sex SportNumber Boys Number Girls Soccer2520 Baseball2030 Basketball15 Tennis816 Total 45 50 30 24 149

Sports Participation by Sex SportNumber Boys Number Girls Soccer2520 Baseball2030 Basketball15 Tennis816 Total 45/149 * 100 = 30% 50/149 * 100 = 34% 30/149 * 100 = 20% 24/149 * 100 = 16% 149

Total Sports Participation

NMS Fundrasing ActivityReceiptsExpense Car wash10060 Breakfast15050 Bake Sale12525 Raffle200100

NMS Fundrasing ActivityReceiptsExpense Car wash10060 Breakfast15050 Bake Sale12525 Raffle200100 Profit 40 100 340

NMS Fundrasing ActivityReceiptsExpense Car wash10060 Breakfast15050 Bake Sale12525 Raffle200100 Profit 40/340 * 100 = 12% 100/340 * 100 = 29% 100/340 * 100 = 30% 340

Profit from Each Event

NMS Absences Day6 th grade7th8th Tuesday5106 Wednesday7106 Thursday666

NMS Absences Day6 th 7th8th Tuesday5106 Wednesda y 7106 Thursday666 Total 21 23 18 62

NMS Absences Day6 th 7th8th Tuesday5106 Wednesda y 7106 Thursday666 Total 21/62 * 100 = 34% 23/62 * 100 = 37% 18/62 * 100 = 29% 62

Day vs Total Absences

Class ACTIVITY: Middle School Circle Graph page 70 (next page) AIM: What is a Circle Graph?

Homework: INTERNET QUESTIONS AIM: What is a circle graph?

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