aidemia--modules-lessonplan_request	Titles of parts of the lesson must be formatted as headings
What to create	Lesson plan
Which subject	Mathematics
What topic	Add and subtract integers
What length (min)	30
What age group	Year or Grade 7
Include homework
Include images descriptions
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Lesson Plan: Add and Subtract Integers

Subject: Mathematics

Grade: 7

Duration: 30 Minutes

Topic: Add and Subtract Integers

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Objectives

• Understand the concept of integers.
• Learn how to add and subtract integers using number lines and rules.
• Apply the addition and subtraction of integers in real-life contexts.

Materials Needed

• Whiteboard and markers
• Number line posters
• Integer flashcards
• Worksheets for practice

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Introduction (5 minutes)

Begin the lesson by asking students if they can define what integers are. Encourage them to think about numbers they encounter daily, such as temperatures, bank balances, and elevations (especially below sea level).

Definition:

• An integer is any whole number, positive or negative, including zero (e.g., -3, -2, -1, 0, 1, 2, 3).

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Instruction (15 minutes)

Adding Integers

1. Same Signs: When adding two integers with the same sign, add their absolute values and keep the sign.

   • For example:
     • ( 3 + 5 = 8 )
     • ( -4 + (-6) = -10 )

2. Different Signs: When adding two integers with different signs, subtract the smaller absolute value from the larger absolute value and use the sign of the number with the larger absolute value.

   • For example:
     • ( 7 + (-2) = 5 )
     • ( -3 + 5 = 2 )

Subtracting Integers

To subtract integers, add the opposite (or additive inverse).

• For example:
  • ( 5 - 3 = 5 + (-3) = 2 )
  • ( -4 - (-2) = -4 + 2 = -2 )

Guided Practice (5 minutes)

Ask students to solve the following problems on the whiteboard:

1. ( 6 + (-4) )
2. ( -3 + 7 )
3. ( -5 - 3 )
4. ( 8 - (-2) )

Provide support as needed and encourage peer discussion.

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Independent Practice (5 minutes)

Distribute worksheets with the following problems for students to solve individually:

1. ( 10 + (-6) = ? )
2. ( -2 + (-5) = ? )
3. ( 3 - 4 = ? )
4. ( -7 + 6 = ? )
5. ( 12 - 5 = ? )
6. ( -8 - (-3) = ? )

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Conclusion (5 minutes)

Review the main concepts of the lesson, highlighting the rules for adding and subtracting integers. Encourage students to share their answers from the independent practice and explain their thought processes.

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Homework

Assign the following tasks for homework:

1. Calculate ( -10 + 15 = ? )
2. Calculate ( 5 - (-3) = ? )
3. Calculate ( -6 - 6 = ? )
4. Calculate ( 4 + (-9) = ? )
5. Calculate ( -12 + 9 = ? )

Correct Answers:

1. ( 5 )
2. ( 8 )
3. ( -12 )
4. ( -5 )
5. ( -3 )

Encourage students to show their work for each problem and remind them to ask questions if they don't understand any concepts.

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Note: Adjust the timing of each section as needed to fit the needs of your classroom and ensure all students have an opportunity to engage actively with the material.