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

Lesson Plan: Rounding

Subject

Mathematics

Grade Level

Year/Grade 9

Topic

Rounding

Class Size

20 Students

Duration

30 minutes

Objectives

• Understand the concept of rounding numbers to the nearest ten, hundred, thousand, and decimal places.
• Apply rounding rules to whole numbers and decimals in various mathematical scenarios.
• Evaluate the reasonableness of rounded numbers in real-world contexts.

Materials

• Whiteboard and markers
• Printed worksheets containing rounding exercises
• Number line visuals
• Calculator (optional)

National Curriculum Alignment

This lesson aligns with the Common Core State Standards for Mathematics, specifically:

• 6.NS.A.3: Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm.
• 7.NS.A.3: Solve real-world and mathematical problems involving the four operations with rational numbers.

Lesson Structure

Step Number	Step Title	Length (mins)	Details
1	Introduction to Rounding	5	Introduce the concept of rounding. Discuss why rounding is useful in everyday life and mathematics.
2	Rounding Rules	10	Present the rules for rounding numbers. Explain rounding up and rounding down using examples.
3	Guided Practice	5	Work through several rounding problems as a class. Students will follow along and ask questions.
4	Independent Practice	5	Distribute worksheets with rounding exercises for individual practice. Circulate to assist students.
5	Class Review and Homework	5	Review key concepts and answers to the worksheet. Assign similar problems for homework. Check understanding but do not require presentations.

Homework

Assign additional rounding exercises from the textbook for practice, ensuring they align with the topics covered in class. Provide clear instructions about submission and feedback without requiring student presentations.

Assessment

Evaluate student understanding through:

• Observation during guided practice.
• Completion of the independent practice worksheet.
• Review of homework assignments for accuracy and effort.

Notes

• Ensure to address varying levels of student proficiency during the lesson.
• Prepare to engage students with real-life scenarios where rounding is applicable, such as budgeting or estimating distances.

Lesson script