Graphs, Tables and Charts.ppt for learners
- 1. Graphs, Tables and Charts
- 2. What is a chart? A chart is a diagram that makes information easier to understand by showing how two or more sets of data are related. There are two common types of chart, a pie chart and a bar chart.
- 3. A pie chart is a circle divided into segments. It is usually used to show percentages.
- 4. A Bar chart is a diagram that makes information easier to understand by showing how two or more sets of data are related. A bar chart is divided into columns.
- 5. A graph is a diagram, usually a line or curve, which shows how two or more sets of numbers or measurements are related.
- 6. Another type of graph is a pictograph, which uses pictures to represent the number of items. These are used a lot in social studies.
- 7. A table is a set of facts and figures arranged in columns and rows.A table is a very useful way of organising numerical information.
- 8. So what do these graphs and charts show us? Graphs and charts are used to give us a visual representation of how data changes, usually over a period of time. The words we can use to describe the changes will be presented on the following slides.
- 9. What is a trend? Trends are the changes or movements in facts and figures over a period of time. We can use different verbs and nouns to describe trends Extrapolate means to find or “take out” the data we are looking for.
- 10. Downward movement (verbs) decline decrease drop fall slide lose ground crash collapse plummet plunge take a fall weaken
- 11. Upward movement (verbs) climb rise increase surge rocket soar gain go through the roof jump rally strengthen
- 12. Stability (verbs) flatten out hold steady level off stabilise bounce back rally recover
- 13. For specifying the degree of change we can use different adjectives Slow Steady Slight Sharp Gradual Disastrous Massive Perilous Rapid Heavy Nervous
- 14. 1. The title of this graph is: 2. The horizontal axis shows: 3. The vertical axis shows: 4. Which color of car sold the most? 5. How many blue cars were sold? 6. Which two colors of cars sold the same amount? 7. There were six cars of this color sold. 8. How many red cars were sold? 9. What is the total number of black and white cars sold? 10. How many total cars (all colors) were sold in this week? Use the chart to answer the questions.
- 15. 1. The title of this graph is: Number of cars sold in a week 2. The horizontal axis shows: Color of cars 3. The vertical axis shows: number of cars 4. Which color of car sold the most? red 5. How many blue cars were sold? 4 6. Which two colors of cars sold the same amount? White and black 7. There were six cars of this color sold. green 8. How many red cars were sold? 15 9. What is the total number of black and white cars sold? 10 10. How many total cars (all colors) were sold in this week? 35 Use the chart to answer the questions.
- 16. Sometimes we are asked to read information from graphs and charts and then use it to set up and solve a problem or problems. We will use a link to the internet to explore some examples and practice problems. Please copy this link so that you can go back and practice whenever you wish. http://www.omegamath.com/Data/d1.1.html
- 17. What we have learned Graphs and charts are used to show the trends of data over time The axes on graphs tell us what data is being represented. We can extrapolate the data we need from graphs and charts to create and solve problems in order to find the information we need to answer a problem or question.