course 1 6-4 bar graphs 6 th grade math homework page 286 #1-4
TRANSCRIPT
Course 1
6-4 Bar Graphs
6th Grade Math HOMEWORK
Page 286
#1-4
6-4 Bar Graphs
Course 1
Warm UpWarm Up
Lesson PresentationLesson Presentation
Problem of the DayProblem of the Day
Warm UpUse the following data set.45 55 58 63 63 37 76 46 34
1. What is the mean of the data?
2. What is the median of the data?
3. What is the mode of the data?
53
55
63
Course 1
6-4 Bar Graphs
Problem of the Day
The distance around the bases is 4 × 90 feet. How many runs does a baseball team need to score before the scoring base runners have covered a mile? (1 mile = 5,280 feet)
15 runs
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6-4 Bar Graphs
Learning Goal Assignment
Learn to display and analyze data in bar graphs.
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6-4 Bar Graphs
Vocabulary
bar graphdouble-bar graph
Insert Lesson Title Here
Course 1
6-4 Bar Graphs
Course 1
6-4 Bar Graphs
A bar graph can be used to display and compare data. A bar graph displays data with vertical or horizontal bars.
Course 1
6-4 Bar Graphs
Additional Example 1A: Reading a Bar Graph
Use the bar graph to answer each question.
A. Which biome in the graph has the lowest average summer temperature?
Find the lowest bar.
The coniferous forest has the least average summer temperature.
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6-4 Bar Graphs
Additional Example 1B: Reading a Bar Graph
Use the bar graph to answer each question.B. Which biomes in the
graph have an average summer temperature of 30C or greater?Find the bar or bars whose heights measure 30 or more than 30.
The grassland and the rain forest have average summer temperatures of 30C or greater.
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6-4 Bar Graphs
Try This: Example 1A
Use the bar graph to answer each question.
A. Which biome in the graph has the highest average summer temperature?
Find the highest bar.
The rain forest has the highest average summer temperature.
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6-4 Bar Graphs
Try This: Example 1B
Use the bar graph to answer each question.
B. Which biomes in the graph have an average summer temperature of 25C or greater?
Find the bar or bars whose heights measure 25 or more than 25.The deciduous forest, the grassland, and the rain forest have average summer temperatures of 25C or greater.
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6-4 Bar Graphs
Additional Example 2: Making a Bar Graph
Use the given data to make a bar graph.
Magazine Subscriptions Sold
Grade 6 Grade 7 Grade 8
258 597 374
Step 1:Find an appropriate scale and interval. The scale must include all of the data values. The interval separates the scale into equal parts.
Step 2:Use the data to determine the lengths of the bars. Draw bars of equal width. The bars cannot touch.
Step 3: Title the graph and label the axes.
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6-4 Bar Graphs
Try This: Example 2
Use the given data to make a bar graph.
Tickets Sold
Grade 6 Grade 7 Grade 8
310 215 285
Step 1:Find an appropriate scale and interval. The scale must include all of the data values. The interval separates the scale into equal parts.
Step 2:Use the data to determine the lengths of the bars. Draw bars of equal width. The bars cannot touch.
Step 3: Title the graph and label the axes.
Grade 6
Grade 7
Grade 8
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350Tickets Sold
Grade
Tic
kets
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6-4 Bar Graphs
A double-bar graph shows two sets of related data.
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6-4 Bar Graphs
Additional Example 3: Problem Solving Application
Make a double-bar graph to compare the data in the table.
Club Memberships
Club Art Music Science
Boys 12 6 16
Girls 8 14 4
11 Understand the Problem
You are asked to use a graph to compare the data given in the table. You will need to use all of the information given.
22 Make a PlanYou can make a double-bar graph to display the two sets of data.
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6-4 Bar Graphs
Additional Example 3 Continued
Solve33 Determine appropriate scales for both sets of data.
Use the data to determine the lengths of the bars. Draw bars of equal width. Bars should be in pairs. Use a different color for boy memberships and girl memberships. Title the graph and label both axes.
Include a key to show what each bar represents.
Look Back44You could make two separate graphs, one of boy memberships and one of girl memberships. However, it is easier to compare the two data sets when they are on the same graph.
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6-4 Bar GraphsTry This: Example 3
Make a double-bar graph to compare the data in the table.
Club Memberships
Club Band Chess Year Book
Boys 9 14 16
Girls 11 7 15
11 Understand the Problem
You are asked to use a graph to compare the data given in the table. You will need to use all of the information given.
22 Make a PlanYou can make a double-bar graph to display the two sets of data.
Course 1
6-4 Bar Graphs
Try This: Example 3 Continued
Solve33 Determine appropriate scales for both sets of data.
Use the data to determine the lengths of the bars. Draw bars of equal width. Bars should be in pairs. Use a different color for boy memberships and girl memberships. Title the graph and label both axes.
Include a key to show what each bar represents.
Look Back44You could make two separate graphs, one of boy memberships and one of girl memberships. However, it is easier to compare the two data sets when they are on the same graph.
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Chess Band Year Book
Boys
Girls
Club
Club Memberships
Mem
ber
ship
s
Lesson Quiz: Part 1
Use the bar graph to answer each question.
1. Which animal was least popular among students?
2. Which pet was more popular to twice as many students as rabbits were?
dog
bird
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6-4 Bar Graphs
Student Pet Survey
Lesson Quiz: Part 2
3. Make a bar graph of this data.
Insert Lesson Title Here
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6-4 Bar Graphs
Number of Daily Servings
Grains = 6
Fruit = 2
Meat = 2
Milk = 3
Vegetables = 3
Number of Daily Servings
01234567
Da
ily
Se
rvin
gs
Grains
Fruit
Meat
Milk
Vegetables