prepare a bar graph based upon scientific data
DESCRIPTION
AIM: What is a bar graph?. OBJECTIVES. Prepare a bar graph based upon scientific data. DEFINITION: a BAR GRAPH is a diagram in which separate but related items are represented by rectangular shapes called “bars” - PowerPoint PPT PresentationTRANSCRIPT
Prepare a bar graph based upon Prepare a bar graph based upon scientific datascientific data
AIM: What is a bar graph?
• DEFINITION:
•a BAR GRAPH is a diagram in which separate but related items are represented by rectangular shapes called “bars”
• the horizontal axis usually represents the manipulated variable
•the vertical axis usually represents the responding variable
AIM
: What i s a bar gra ph ?
• EXAMPLE:
Absences today
6th grade 7
7th grade 12
8th grade 4
Put this in a bar graph
AIM
: What i s a bar gra ph ?
AIM
: What i s a bar gra ph ?
Step One: Draw your axis:
AIM
: What i s a bar gra ph ?
Step Two: label your axis:
Grade Level
6th 7th 8th
# of Absenc es 5
10
15
AIM
: What i s a bar gra ph ?
Step Three: plot your data:
Grade Level
6th 7th 8th
# of Absenc es 5
10
15
AIM
: What i s a bar gra ph ?
Step Four: Fill in your bars:
Grade Level
6th 7th 8th
# of Absenc es 5
10
15
AIM
: What i s a bar gra ph ?
Step Five: What is Missing?
TITLE YOUR GRAPH!
Grade Level
6th 7th 8th
# of Absenc es 5
10
15
AIM
: What i s a bar gra ph ?
Step Five: Possible Title --
Absences in Each Grade Level
Grade Level
6th 7th 8th
# of Absenc es 5
10
15
AIM
: What i s a bar gra ph ?
Step Five: Alternative Title
{x vs. y} Grade Level vs. Absences
Grade Level
6th 7th 8th
# of Absenc es 5
10
15
Example:
What is the difference between boys and girls on Team A in each Science Class?
2nd period: 10B 8G5th 8B 10G6th 7G 11B7th 12G 8B
AIM
: What is a B
ar Graph?
What should we do first?
We should probably put our “raw data” into a better and simpler data table.
2nd period: 10B 8G5th 8B 10G6th 7G 11B7th 12G 8B
any suggestions?
AIM
: Wha t is a B
ar Graph?
Boys and Girls in each Science Class
Period Boys Girls2 10 85 8 106 11 77 8 12
AIM: What is a Bar Graph?
AIM
: What i s a bar gra ph ?
Step One: Draw your axis:
AIM
: What i s a bar gra ph ?
Step Two: label your axis:
Science Classes
2 5 6 7
# of Boys/G
irls
5
10
15
AIM
: What i s a bar gra ph ?
Step Three and Step Four:
Plot your data and fill in your bars:
Science Classes:
2 5 6 7
# of Boys/G
irls
5
10
15
Boys Girls
AIM
: What i s a bar gra ph ?
Step Five: ????
TITLE: Boys and Girls in Each Science Class
Science Classes
2 5 6 7
# of Boys/G
irls
5
10
15
AIM
: What i s a bar gra ph ?
Step Five: ???? {x vs. y}
Science Class vs. the Number of Boys and Girls
Science Classes
2 5 6 7
# of Boys/G
irls
5
10
15
0
2468
1012
Number of Students
2 5 6 7
Science Class Period:
Boys and Girls in Each Science Class
BoysGirls
AIM
: What i s a bar gra ph ?
• Tips for Bar Graphs?
•The manipulated variable always goes on the x axis. (What does that mean?)
•Title and Label all axis. Include the units!
•Determine the correct “scale” to be used on the graph.
•Make sure your vertical axis uses a scale which is consistent and does not change
AIM
: What i s a bar gra ph ?
• Tips for Bar Graphs?
•The width of all bars should be the same
•You should leave a “skipped” space between each separate bar group.
•That “skipped” space should be the same distance for each category
AIM
: What i s a bar gra ph ?
• Tips for Bar Graphs?
AIM
: What i s a bar gra ph ?
F-Plant 1 NF-Plant 2
(inches) (inches)
2 2
4 4
8 7
10 8
14 9
Day of Growth
2
5
10
15
20
Table of Plant Days vs. Plant Height:
:
Days of Growth 2 5 10 15 20
Heigh t of Plan t
2
6
F-Plant 1 NF- Plant 2
4
810
14
12
:
Days of Growth 2 5 10 15 20
Heigh t of Plan t
2
6
F-Plant 1 NF- Plant 2
4
810
14
12
What is wrong with this Graph (2 things) ?
:
Days of Growth 2 5 10 15 20
Heigh t of Plan t
2
6
F-Plant 1 NF- Plant 2
4
810
14
12
Days of Growth vs. Plant Height
inche s
Class ACTIVITY:
Creating Bar Graphs page 63
AIM: What is a Bar Graph?
Knap-Sack Brand
Brand Number of Boys
NIKE 20
FUBU 40
Polo 30
TARGET 10
Knap-sack brand vs Students
0
5
10
15
20
25
30
35
40
Nike Fubu Polo Target
Number of Students
A Team Population
Year Number
2004 110
2003 105
2002 85
2001 101
Years vs. Number of Students
0
20
40
60
80
100
120
2004 2003 2002 2001
Student
Sports Participation by Sex
Sport Number of Boys Number of Girls
Soccer 25 20
Baseball 20 30
Basketball 15 15
Tennis 8 16
Sports Participation by Sex
0
5
10
15
20
25
30
35
soccer baseball basketball tennis
boysgirls
NMS Fundrasing
Activity Receipts Expense
Car wash 100 60
Breakfast 150 50
Bake Sale 125 25
Raffle 200 100
Event vs. Dollar Amount
0
50
100
150
200
250
Car Wash Pancake Bake Sale Raffle
RecieptsExpenses
NMS Absences
Day 6th grade 7th 8thTuesday 5 10 6
Wednesday 7 10 6
Thursday 6 6 6
Day vs Absences
0123456789
10
Tueday Wednesday Thursday
6th7th8th
Homework:
INTERNET QUESTIONS
AIM: What is a bar graph?