# Create a Bar Graph

### Collect Your Data & Display It On a Bar Graph

## Background

Data is easier to interpret when it is organized into a table or a graph.

Use a **bar graph** to display countable data that are grouped in categories. A **bar graph** displays data with vertical or horizontal bars. A **double-bar graph** shows two sets of related data.

__Standards:__

- Standard - CC.2.4.6.B.1

Demonstrate an understanding of statistical variability by displaying, analyzing, and summarizing distributions.

__Anchors:__

__Assessment Anchor__- M06.D-S.1 Demonstrate understanding of statistical variability by summarizing and describing distributions.__Anchor Descriptor__- M06.D-S.1.1 Display, analyze, and summarize numerical data sets in relation to their context.

__Eligible Content:__

- Eligible Content - M06.D-S.1.1.1 Display numerical data in plots on a number line, including line plots, histograms, and box-andwhisker plots.
- Eligible Content - M06.D-S.1.1.2 Determine quantitative measures of center (e.g., median, mean, mode) and variability (e.g., range, interquartile range, mean absolute deviation).

## Example

**Introduction** - Have students discuss places where they have seen graphs and what the graphs represent. Examples - newspapers, magazines, television, survey results, textbooks.

**Bar Graph Lesson** - Students learn to display and analyze data in bar graphs. First, teach students to read a bar graph. Then teach them to make bar graphs and double-bar graphs, given sets of data. Students can use Khan Academy and Study Island (they must use their school issued username and password) tutorials for assistance.

**Activity** - Students poll their classmates with a survey question (Example - What is your favorite season?). Students will gather their data and create a bar graph or double-bar graph in order to display their results. Students will create their graphs on the Kids' Zone website. Students will then analyze their data finding the range, mean, median, and mode. Share students' findings in a class discussion and display the graphs for everyone to see.

## Challenge

## Credits/Citations

__Websites:__

Pennsylvania Department of Education - SAS. Retrieved from http://www.pdesas.org/Standard/View#

Holt McDougal. *Collect and Display Data*. Retrieved from http://my.hrw.com/index.jsp?url=http://my.hrw.com/hrw/my_hrw_teacher_hub.jsp?close=true

Khan Academy. *Data and Statistics*. Retrieved from https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics

Study Island. Retrieved from http://www.studyisland.com/

Learning With NCES. *Kids' Zone*. Retrieved from http://nces.ed.gov/nceskids/createAgraph/

Meta-Chart. Retrieved from https://www.meta-chart.com/bar

__Images:__

Vertical Bar Graph. [Web Photo]. Retrieved from http://getwordwall.com/Attachments/Screenshots/Play/bar-graph.png

Horizontal Bar Graph. [Web Photo]. Retrieved from http://www.mathgoodies.com/lessons/graphs/images/bar_graph_example1.jpg

Double-Bar Graph. [Web Photo]. Retrieved from http://www.ask-math.com/images/Doublebargraph.png

Circle Graph. [Web Photo]. Retrieved from http://www.webquest.hawaii.edu/kahihi/mathdictionary/images/Pepperoni.png