Bar GraphsBar Graphs

FOCUSFOCUSGPS Standard: M6D1b. Using data construct graphs.

EU: By creating tables and graphs we are able to represent data visually.

EQ: What is the best way to organize my data?

Vocabulary: data, bar graphs, double bar graphs

About Bar GraphsAbout Bar Graphs

Bar graphs are used to compare data.Bar graphs must include a title, x and

y axes, labels of axes, equal intervals along the axes, and the representation of the data in a bar shape.

Parts of a Bar GraphParts of a Bar Graph

Number of Students in each grade at Washington Middle

School

Number of

Students

Grade

Title

Y- Axis Label

X- AxisLabel

Y- Axis

X- Axis Bar shape

Equal Intervals

Bar Graphs can be oriented Bar Graphs can be oriented either horizontally…either horizontally…

or verticallyor vertically

They can be single….They can be single….

or doubleor doubleMath-A-Thon

Donations

Grade Level

Remember….Remember….

Double Bar Graphs MUST include a key so that the reader can identify what the bars represent

Key

Steps to Creating a Bar Steps to Creating a Bar GraphGraph

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.

Step 3: Title the graph and label the axes.

Let’s PracticeLet’s Practice

Let’s create a single and double bar graph for the favorite fruit of the students in this class.

With a PartnerWith a Partner

Create a bar graph to represent the speed of the animals in the data below

Animal

House Cat

Rabbit

Cheetah

Reindeer

Zebra

Speed (mi/h

30 35 70 32 40

On Your OwnOn Your Own

Complete workbook page 171 (1-4)