# 8th Grade Relations And Functions Lesson Plan Example

## Topic: Relations and Functions

### Objectives & Outcomes:

• By the end of this lesson, students will be able to define relations and functions and differentiate between the two.

### Materials

• Whiteboard and markers
• Handouts with examples of relations and functions

### Warm-up

• Ask students to give examples of relations and functions. Write their responses on the board.
• Discuss the differences between relations and functions, using the handouts as a guide.

### Direct Instruction

• Define relations and functions.
• Relate the definitions to concrete examples.
• Use the handouts to illustrate the differences between relations and functions.

### Guided Practice

• Distribute the worksheets with examples of relations and functions.
• Have students work through the examples and fill in the blanks with the appropriate terms.
• Go over the answers as a class.

### Independent Practice

• Have students work on the activities in the worksheet:
• Have students draw a graph for each relation and label the axes and intercepts.
• Have students analyze the graphs and determine whether the relations are one-to-one, onto, or one-to-many.
• Have students write a sentence for each relation that describes the relationship between the -inputs and the outputs.

### Closure

• Review the definitions of one-to-one, onto, and one-to-many for relations.
• Ask students to give examples of each type of relation.
• Ask students to explain the importance of understanding the distinction between one-to-one, onto, and one-to-many for relations.

### Assessment

• Observe students during the guided practice activity and provide feedback on their ability to identify examples of each type of relation and explain the importance of understanding the distinction between one-to-one, onto, and one-to-many for relations.
• Collect and grade the completed worksheets from the independent practice activity.
• Administer a quiz at a later date to assess students' understanding of the concepts covered in the lesson.