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

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

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

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

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!

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

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?

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

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?

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%

Well Done! Finis