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Which subject	Mathematics
What topic	functions
What length (min)	30
What age group	Year or Grade 9
Class size	20
What curriculum
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Ask some students to presents their homework
Add a physical break
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Include homework
Show correct answers
Prepare slide templates
Number of slides	5
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Lesson plan

Lesson Plan: Functions in Mathematics

Topic

Functions

Objectives

Understand the definition of a function.
Identify and differentiate between various types of functions (e.g., linear, quadratic, and exponential).
Learn and practice how to evaluate functions.
Develop problem-solving skills through function-based exercises.

Materials

Whiteboard and markers
Graphing calculators (optional)
Handouts with function exercises
Projector and slides for presentations
Textbook reference: "Mathematics for Grade 9"

Grade/Age Group

Grade 9

Subject

Mathematics

Class Size

20 students

Lesson Duration

30 minutes

National Curriculum Alignment

This lesson aligns with the Common Core State Standards for Mathematics (CCSS.MATH.CONTENT.HSF.IF.A.1, HSF.IF.B.6), focusing on understanding functions and their representations.

Lesson Structure

Step Number	Step Title	Length (minutes)	Details
1	Introduction	5	Briefly introduce the concept of functions with real-life examples. Explain why functions are important in mathematics.
2	Definition	5	Define what a function is, using terminology such as "domain" and "range." Provide simple examples on the whiteboard.
3	Types of Functions	10	Introduce different types of functions (linear, quadratic, exponential). Use graphs to illustrate each type. Hand out printed exercises for categorizing functions.
4	Evaluating Functions	5	Teach how to evaluate functions given specific inputs. Work through a few examples on the whiteboard and demonstrate using a graphing calculator if available.
5	Guided Practice	3	Distribute function evaluation exercises for students to complete individually. Provide support as needed.
6	Homework Overview	2	Explain the homework assignment: students will complete exercises from their textbooks involving different types of functions.
7	Review and Close	2	Summarize key points covered in the lesson. Answer any last-minute questions before students leave.

Homework

Students will complete a worksheet focusing on evaluating functions and identifying types of functions, which will be collected and checked for completion without presentation.