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# Unit 2 session 1.4: Bar Graphs

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This is the lesson we did in class October 14. Print the file, and complete the activities to create the bar graphs.

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• Thank you Mrs. Harper. I loved it. Kerri

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### Unit 2 session 1.4: Bar Graphs

1. 1. What is data? Why do people want to collect data? Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 What is data?
2. 2. Let's collect some data! Are you wearing red? Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Collect data: wearing red?
3. 3. 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 Frequency table: wearing red
4. 4. How do people show data? picto graph gr aph bar freq uenc c hart y tab le line plot Click to see a video about graphs. What is a Graph? Surveys & Line Plots: Lesson 1 Investigation 1, session 1.4 How do people show data?
5. 5. Bar Graphs A bar graph is a tool to compare data. 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: tool to compare data
6. 6. Parts of a Bar Graph Shoe Sizes in Our Team Title Scale 24 _ 22 _ 20 _ 18 _ 16 _ 14 _ Number of Students 12 _ 10 _ 8_ 6_ 4_ Bars 2_ 0 Labels 1 2 3 4 5 6 7 8 Shoe Size 9 10 11 12 What is the scale of this bar graph? Remember: scale should be larger than 1 Bar graph: parts
7. 7. What shoe size is worn by 14 students in the team? Answer: _________ Shoe Sizes in our Team 24 _ 22 _ 20 _ Number of Students _ 18 _ 16 _ 14 _ 12 10 _ 8_ _ 6 4_ 2_ 1 2 3 4 5 6 7 8 9 10 11 12 Shoe Size Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Practice reading bar graph
8. 8. How many students in the team wear size 6 shoes? Answer: _________ Shoe Sizes in our Team 24 _ 22 _ _ 20 Number of Students _ 18 _ 16 _ 14 _ 12 10 _ 8_ _ 6 4_ 2_ 1 2 3 4 5 6 7 8 9 10 11 12 Shoe Size Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Practice #2
9. 9. How many students in the team wear size 4 shoes? Answer: _________ Shoe Sizes in our Team 24 _ 22 _ 20 _ Number of Students _ 18 16 _ _ 14 12 _ 10 _ 8_ 6_ 4_ 2_ 1 2 3 4 5 6 7 8 9 10 11 12 Shoe Size Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Practice #3
10. 10. 1 What shoe size is worn by 14 students in the team? Answer: _________ Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Shoe Sizes in our Team 24 _ 22 _ 20 _ Number of Students 18 _ 16 _ _ 14 12 _ 10 _ 8_ _ 6 4_ 2_ 1 2 3 4 5 6 7 8 9 10 11 12 Shoe Size Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Practice #4
11. 11. What is the scale of this bar graph? Large numbers: big scale Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 What is the scale of the bar graph?
12. 12. You need to think about the numbers when you choose a scale for a graph. Big numbers: big scale Small numbers: small scale Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Big numbers: big scale; small: small scale
13. 13. 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 What would be a good scale for our graph?
14. 14. Add the scale and bars to the bar graph. Check on next slide. Are you wearing red? Number of Students Wearing red Not wearing red Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Create Bar Graph: Wearing Red
15. 15. Are you wearing red? 24 22 20 Number of Students 18 16 14 12 10 8 6 4 2 0 Wearing red Not wearing red Clothing color choices Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Create Bar Graph: Wearing Red
16. 16. Creepy Crawlers Class Activity Place a tally mark next to your favorite creature. Total Fly Spider Ladybug Grasshopper Caterpillar Creepy Crawlers tally chart
17. 17. Name:______________ Date:______________ Bar graph Title: _____________ Label: _____________________ Scale: Label: _____________________ Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Bar graph template
18. 18. Name:______________ Date:______________ Bar graph Favorite Creatures Title: _____________ Number of Votes Label: _____________________ 15 12 9 6 3 0 Grasshopper Fly Spider Ladybug Caterpillar Scale: Creatures Label: _____________________ Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Create Bar Graph: Wearing Red
19. 19. 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. Surveys & Line Plots: Lesson 1 (revised 2009) Investigation 1, session 1.4 Today's Task