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Which subject	Mathematics
What topic	Inequalities
What length (min)	30
What age group	Year or Grade 9
Class size	20
What curriculum
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Number of slides	5
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Lesson plan

Lesson Plan: Inequalities

Topic

Inequalities

Objectives

• Understand the concept of inequalities and how they differ from equations.
• Solve linear inequalities in one variable.
• Graph solutions to inequalities on a number line.
• Apply inequalities to solve real-life problems.

Grade/Age Group

Year/Grade 9

Subject

Mathematics

Length of Lesson

30 minutes

Materials

• Whiteboard and markers
• Graph paper
• Rulers
• Worksheets with practice problems
• A projector (optional) for visual aids

Class Size

20 students

National Curriculum Alignment

This lesson plan is designed to meet the national curriculum standards for Grade 9 mathematics, focusing on understanding inequalities and their applications.

Lesson Structure

Step Number	Step Title	Length	Details
1	Introduction to Inequalities	5 min	Begin with a brief review of equations. Introduce inequalities by explaining their definitions and symbols (>, <, ≥, ≤). Provide examples.
2	Solving Simple Inequalities	10 min	Demonstrate solving basic linear inequalities using examples. Highlight key rules (e.g., multiplying/dividing by negative numbers).
3	Group Practice	5 min	Students will work in pairs on practice problems from worksheets. Monitor and assist as necessary.
4	Graphing Inequalities	5 min	Show how to represent inequalities on a number line. Provide an example and have students graph a simple inequality like x < 3.
5	Real-Life Applications	3 min	Discuss how inequalities can be used in everyday situations (e.g., budgeting, measurements). Provide one real-life scenario for practice.
6	Wrap-Up and Homework Assignment	2 min	Recap the key concepts covered in the lesson. Assign homework: a worksheet with a variety of inequalities to solve. Students submit without presentation.

Homework

• Complete the assigned worksheet on solving and graphing inequalities.
• Due next class session.

Assessment

• Students will be assessed through their worksheets during the next class, focusing on correct application of inequalities and graphs.

Additional Notes

• Encourage students to ask questions throughout the lesson to ensure understanding.
• Remind students to show all steps in their work when solving inequalities for clarity.

Lesson script