Grade 7 Math Lesson on Adding and Subtracting Integers. Includes Review, Examples, Practice Problems, and Video Resources.

Lesson Plan: Adding and Subtracting Integers

Grade: 7 Subject: Mathematics

Introduction:

• Begin the lesson by asking students if they have ever encountered situations where they needed to add or subtract positive and negative numbers.
• Discuss real-life examples such as temperature changes, bank account balances, or elevations.
• Explain that today's lesson will focus on adding and subtracting integers, which are positive and negative whole numbers.

Lesson Outline:

1. Review of Positive and Negative Numbers:

• Recap the concept of positive and negative numbers.
• Discuss the number line and how positive numbers are to the right of zero, while negative numbers are to the left.

1. Adding Integers:

a. Introduce the concept of adding integers with the same sign:

• Explain that when adding two positive numbers, the sum is positive.
• Demonstrate examples on the board and encourage students to participate.

b. Introduce the concept of adding integers with different signs:

• Explain that when adding a positive and a negative number, we subtract the smaller absolute value from the larger one.
• Provide examples and allow students to practice with partners.

c. Provide additional practice problems and worksheets for individual work.

• Video resource: "Adding Integers" - https://www.youtube.com/watch?v=3vZwKv3wLfc

1. Subtracting Integers:

a. Introduce the concept of subtracting integers:

• Explain that subtracting a positive number is the same as adding its opposite (negative) value.
• Demonstrate examples on the board and encourage students to participate.

b. Introduce the concept of subtracting a negative number:

• Explain that subtracting a negative number is the same as adding its positive value.
• Provide examples and allow students to practice with partners.

c. Provide additional practice problems and worksheets for individual work.

• Video resource: "Subtracting Integers" - https://www.youtube.com/watch?v=3vZwKv3wLfc

Questioning:

• Throughout the lesson, ask students questions to check their understanding and engage them in discussions.
• Examples of questions:

1. What happens when we add two positive numbers?
2. How do we add a positive and a negative number?
3. Can you explain the process of subtracting a negative number?

Assessment:

• Distribute a worksheet with a variety of adding and subtracting integer problems.
• Monitor students' progress and provide assistance as needed.
• Review the completed worksheets to assess students' understanding of the topic.

Differentiation:

• For students who need additional support, provide manipulatives such as number lines or counters to help visualize the addition and subtraction of integers.
• For advanced students, provide more challenging problems that involve multiple operations or require critical thinking.

Plenary:

• Summarize the key concepts covered in the lesson.
• Ask students to share any challenges they faced and how they overcame them.
• Provide additional practice problems or a game to reinforce the concepts learned.
• Encourage students to ask any remaining questions or seek clarification on any topic.

Worksheet Resources:

1. Adding and Subtracting Integers Worksheet - https://www.mathworksheets4kids.com/integers/add-subtract/level1.pdf
2. Integer Operations Worksheet - https://www.superteacherworksheets.com/integer/integer-operations.pdf

Note: The provided video resource covers both adding and subtracting integers.