# Data and Graphs

**Learning Objectives** for all Data and Graphs lessons in Unit 11.

#### Data and Line Graphs

The student will be able to:

- Define data, line graph, title, label, scale, point and line.
- Identify the parts of a line graph.
- Examine line graphs presented in examples.
- Interpret information from line graphs presented in five interactive exercises.

#### Constructing Line Graphs

The student will be able to:

- Define range, horizontal scale and vertical scale.
- Examine the procedure for constructing a line graph from a given set of data.
- Describe the procedure for constructing a line graph.
- Construct line graphs for data presented in two exercises.

#### Data and Bar Graphs

The student will be able to:

- Define bar graph, grid line and categories.
- Identify the parts of a bar graph.
- Examine bar graphs presented in examples.
- Recognize that bar graphs can have vertical or horizontal scales.
- Interpret information from bar graphs presented in five interactive exercises.

#### Constructing Bar Graphs

The student will be able to:

- Define bar, bar length and bar height.
- Examine the procedure for constructing a bar graph from a given set of data.
- Describe the procedure for constructing a bar graph.
- Construct bar graphs for data presented in two exercises.

#### Data and Circle Graphs

The student will be able to:

- Define circle graph, sector and pie chart.
- Identify the parts of a circle graph.
- Examine circle graphs presented in examples.
- Recognize that a circle graph is easier to read when percents, not fractions, are used to label the data
- Explain why a circle graph is also called a pie chart.
- Recognize, if there are more than five or six categories in a set of data, then a circle graph is not a good choice for displaying that data.
- Recognize that circle graphs provide a visual presentation of the whole and its parts.
- Interpret information from circle graphs presented in five interactive exercises.

#### Constructing Circle Graphs

The student will be able to:

- Review the definition and purpose of a circle graphs.
- Examine the procedure for constructing a circle graph from a given set of data presented in table.
- Compute the values for the parts and the whole of the graph.
- Compute exactly what fraction or percent each item (part) represents.
- Compute the angle measure for each part of a circle graph.
- Draw and label the parts of a circle graph.
- Describe the procedure for constructing a circle graph.
- Recognize that circle graphs represent data visually in the same proportion as the numerical data given in a table.
- Construct circle graphs for data presented in two exercises.

#### Comparing Graphs

The student will be able to:

- Define visual data display.
- Describe the types of graphs learned in this unit and their uses.
- Compare and contrast different graphs.
- Recognize that circle graphs are best used to compare the parts of a whole.
- Recognize that bar graphs are used to compare facts.
- Recognize that a line graph is used to show changes over time.
- Determine which type of graph is appropriate for representing a given set of data presented in five interactive exercises.
- Connect graphs to data found in the real world.

#### Practice Exercises

The student will be able to:

- Examine ten interactive exercises for all topics in this unit.
- Interpret and analyze graphs presented to determine what information is given.
- Complete exercises by applying data and graph concepts.
- Self-assess knowledge and skills acquired from this unit.

#### Challenge Exercises

The student will be able to:

- Evaluate ten interactive exercises for all topics in this unit.
- Interpret and analyze graphs presented to determine what information is given.
- Compare a set of graphs that represent the same data in each of three exercises.
- Determine which graph shows all of the facts correctly.
- Determine which type of graph is appropriate for representing a given set of data in each of three exercises.
- Determine what is wrong with graphs in each of four exercises.
- Develop problem-solving skills.

#### Solutions

The student will be able to:

- Examine the answer for each exercise presented in this unit.
- Examine graphs presented as possible solutions..
- Recognize that graphs created will vary depending on the scales used.
- Compare possible solutions to completed exercises
- Identify and evaluate incorrect answers.
- Reconstruct and label graphs that did not accurately represent the data from completed exercises.
- Identify areas of strength and weakness.
- Decide which concepts and procedures need to be reviewed from this unit.