Unit 2 session 1.4: Bar Graphs
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What is data? What is data? Why do people want to collect data? Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4
description
This is the lesson we did in class October 14. Print the file, and complete the activities to create the bar graphs.
Transcript of Unit 2 session 1.4: Bar Graphs
What is data?
What is data?
Why do people want to collect data?Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Collect data: wearing red?
Are you wearing red?
Let's collect some data!
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Frequency table: wearing red
Are you wearing red?
Let's record with tally marks!
Wearing red
Not wearing red
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
How do people show data?
How do people show data?
frequency tablechart
line plot
bar graphpictograph
Surveys & Line Plots: Lesson 1Investigation 1, session 1.4
Click to see a video about graphs. What is a Graph?
Bar Graph: tool to compare data
A bar graph is a tool to compare data.
Bar Graphs
Click to see a video about bar graphs.Bar Graphs.mov
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Bar graph: parts
TitleScale
Labels
BarsNum
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of S
tude
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Remember: scale should be larger than 1
Shoe Size
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_Shoe Sizes in Our Team
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Parts of a Bar Graph
What is the scale of this bar graph?
Practice reading bar graph
What shoe size is worn by 14 students in the team?Answer: _________
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1 2 3 4 5 6 7 8 9 10 11 12
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Shoe Sizes in our Team
Num
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Shoe SizeSurveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Practice #2
How many students in the team wear size 6 shoes?Answer: _________
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1 2 3 4 5 6 7 8 9 10 11 12
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Shoe Sizes in our Team
Num
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Shoe Size
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Practice #3
How many students in the team wear size 4 shoes?Answer: _________
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101214161820_
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_
1 2 3 4 5 6 7 8 9 10 11 12
_2224_
Shoe Sizes in our Team
Num
ber
of S
tude
nts
Shoe Size
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Practice #4
What shoe size is worn by 14 students in the team?Answer: _________
2468
101214161820 _
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____
_
1 2 3 4 5 6 7 8 9 10 11 12
_2224 _
Shoe Sizes in our Team
Num
ber
of S
tude
nts
Shoe Size
1
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
What is the scale of the bar graph?
What is the scale of this bar graph?
Large numbers: big scale Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Big numbers: big scale; small: small scale
You need to think about the numbers when you choose a scale for a graph.
Small numbers: small scale
Big numbers: big scale
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
What would be a good scale for our graph?
Are you wearing red?
We only have two choices. We have smaller numbers. What would be a good scale for a bar graph?
Wearing red
Not wearing red
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Create Bar Graph: Wearing Red
Are you wearing red?
Wearing red Not wearing red
Num
ber
of S
tude
nts
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Add the scale and bars to the bar graph. Check on next slide.
Create Bar Graph: Wearing Red
Are you wearing red?
Wearing red0
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Not wearing red
Num
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Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4Clothing color choices
Creepy Crawlers tally chart
Class ActivityPlace a tally mark next to your favorite creature.
Spider
Ladybug
Fly
Grasshopper
Caterpillar
Total
Creepy Crawlers
Bar graph template
Title: _____________
Sca
le:
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Labe
l: __
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Label: _____________________
Name:______________
Bar graphDate:______________
Create Bar Graph: Wearing Red
Title: _____________
Sca
le:
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Labe
l: __
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Label: _____________________
Name:______________
Bar graphDate:______________
Favorite Creatures
Num
ber
of V
otes
Creatures
Fly Spider Ladybug Grasshopper Caterpillar0
3
6
9
12
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Today's Task
Surveys & Line Plots: Lesson 1 (revised 2009)Investigation 1, session 1.4
Today's Task: Create a Bar Graph
Show the data we collected about Creepy Crawlers.
Do both sides of the worksheet your teacher gives you.
