1. An Introduction to Graphs and Charts
Graphic Organizers C4
An Introduction to Graphs and Charts
Why do we need to understand graphs?
Graphs are pictures that represent data.
Data are facts or information—usually shown in numbers
Student absences
Student absences
ECAE Foundation Last updated: June 2008/JN

2. Studying at high school and college
In this presentation, we will look at three important types of graphs. First, we will begin with T-Charts…
Draw the T-chart on some paper and write down some similarities and differences between studying at a college or university and studying at high school.
Studying at high school and college
Similarities
Differences

3. Draw another T-chart compare the advantages and disadvantages to working during in the evenings.
Working in the Evening
Advantages
Disadvantages

4. Television Good for Children
Draw a final T-chart if you agree or disagree that television is good for children.
Television Good for Children
Agree
Disagree

5. Bar Charts Bar charts are used to compare two or more sets of data.
Bar charts usually have:
a title
a y-axis and an x-axis.
a range
a key
Find all of the above in the chart to the right
Ask your teacher if you need help!

6. Answers a title : Average Hours of Study Per Day
a y-axis: Hours of Study Per Day
an x-axis: Weeks 1-4
a range: 0-10
a key: High School, College, and Graduate students

7. Pie Charts Pie charts often show percentages (x/100).
Pie charts usually include:
a title
percentages
a key
Find all of the above in the pie chart to the right
What is the range?

8. Answers a title: Majors at University
percentages: 8%, 15%, 20%, 22%, 35%
a key: Business, Law, Medicine, Education, Science
What is the range? 0-100

9. Look at the bar chart below and answer the questions on the right.
What does the bar chart show?
How many students participated in the survey?
Which two groups are compared?
Which is the top reason among non-native speakers to learn a language?
What is the percentage?
Which reason is the lowest for native speakers to learn a language?
What is the range on this chart?

10. Answers What does the bar chart show? Reasons for learning languages
How many students participated in the survey? 1,000
Which two groups are compared? Native and non native speakers
Which is the top reason among non-native speakers to learn a language? Improves job prospects
What is the percentage? 92-93%
Which reason is the lowest for native speakers to learn a language? It’s enjoyable
What is the percentage? 20%
What is the range on this chart? 0-100%

11. Well Done!
Finis