Bellringer 1. Which animal has the same average lifespan as a wolf? a)Rabbit b)Horse c)Giraffe d)Monkey 2. Which animal lives twice as long as a giraffe?

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Presentation transcript:

Bellringer 1. Which animal has the same average lifespan as a wolf? a)Rabbit b)Horse c)Giraffe d)Monkey 2. Which animal lives twice as long as a giraffe? a)Rabbit b)Horse c)Wolf d)Monkey 3. What did you do on your two snow days?

Bar Graphs

Objective I will be able to construct and analyze bar graphs

Question RegionPercent Midwest23 Northeast19 South36 West22 Which graphic would you prefer to use if you were scanning through a magazine article quickly for information?

Vocabulary! Graph: is a visual way to display data Bar Graph: used to compare data Scale: The numbers that your graph begins and ends at Interval: The number you are counting by (what separates your graph into equal parts) Vertical axis: this is where the scale is written Horizontal axis: this is where the categories are written

Problem-Solving Strategy 1. Decide on the scale and interval 2. Label the horizontal and vertical axes 3. Draw bars for each category 4. Label the graph with a title

Example 1. Make a vertical bar graph of the data. 2. Compare the number of students who scored a B to the number of students who scored a C Math Scores GradeFrequency A10 B13 C7 D2

Together 1. Make a bar graph of the data 2. Compare the number of students in jazz class with the number in ballet class Dance Classes StyleStudents Ballet11 Tap4 Jazz5 Modern10

Independently 1.Make a bar graph for the set of data. 2.How does the number of endangered fish compare to the number of endangered reptiles? 3.List the species ordered from most endangered to least endangered U.S. Endangered Species SpeciesFrequency Fish70 Reptiles14 Amphibians10 Birds78 Mammals63

Analyse At your group you will be given a document with bar graphs You need to discuss the questions that follow and answer them using complete sentences

Group Work At your table group you will receive a topic to collect data on Each member needs to move around the room and collect answers from 5 people Return to your tables and combine your data Each group member needs to make a bar graph using this data Be ready to share your graph with other groups

DOL 1. Make a graph for the set of data 2. Which country made the greatest number of cars? Cars Made in 2000 CountryCars (millions) Brazil 1 Japan 8 Germany 5 Spain 2 U.S.A 6

Grade your DOL: Drop your pencils on the ground and pick up a highlighter 1. Make a graph for the set of data 2. Which country made the greatest number of cars? Japan