Functions Lesson Plan for 8th Grade Example Students

Topic: functions

Objectives & Outcomes

By the end of this lesson, students will be able to identify functions using function notation, determine the domain and range of functions, and use functions to solve real-world problems.

Materials

Whiteboard and markers

Handouts with examples of functions in function notation

Calculators

Warm-up

Ask students to think of a function they have seen before.

Write down their answers on the board.

Ask students to share their answers with a partner.

Encourage them to explain how they determined the function was a function.

Once all answers have been shared, discuss as a class.

Direct Instruction

Introduce the term "function."

Define a function as a relationship between two variables in which each value of one variable is associated with exactly one value of the other variable.

Provide examples of functions using function notation.

Discuss how to identify functions using function notation.

Use the handouts to show examples of functions and their corresponding function notations.

Have students work through a few practice problems using function notation.

Guided Practice

Distribute the worksheets with function notation problems.

Walk students through the problems, providing assistance as needed.

Assess comprehension by having students work through a few more practice problems on their own.

Review any incorrect answers and explain how to arrive at the correct solution.

Independent Practice

Have students work on more problems using function notation.

Encourage them to use their calculators if necessary.

Allow them to work at their own pace, checking in occasionally to assist with any difficulties.

Closure

Review the key points of the lesson, including the different ways to represent functions, how to use function notation, and how to interpret the variables in a function.

Ask students to share one thing they learned about functions today.

Assessment

Collect and review the worksheets the students completed during the lesson.

Use the presentations the students gave during independent practice as a form of assessment.

Use the class discussion during guided practice as a form of assessment.

Use the closure as a form of assessment.

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