Basic Operation: Addition and Subtraction of positive and negative integers, Using number lines and their terms, Everyday application of positive and negative integers, Solving problems on Quantitative reasoning on basic operations

Lesson Plan: Addition and Subtraction of Positive and Negative Integers

Topic: Basic Operations - Addition and Subtraction of Positive and Negative Integers Subject: Mathematics Class: JSS 1 Curriculum: Hybrid

Objectives:

1. Add and subtract positive and negative integers.
2. Use number lines to add and subtract positive and negative integers.
3. Solve real-life problems and everyday activities involving positive and negative integers.

Materials:

• Whiteboard and markers
• Number lines printed or displayed on a screen
• Real-life scenario worksheets
• Quantitative reasoning exercises

Introduction (10 minutes):

1. Review the concept of positive and negative integers.
2. Introduce the concept of addition and subtraction of positive and negative integers.
3. Use the number line to illustrate the concept of positive and negative integers.

Direct Instruction (20 minutes):

1. Addition of Positive and Negative Integers:
   • Explain the rules for adding positive and negative integers.
   • Use examples to demonstrate the addition of positive and negative integers, such as:
     • 2 + 3 = 5
     • -2 + 3 = 1
     • 2 + (-3) = -1
   • Use the number line to visualize the addition process.
2. Subtraction of Positive and Negative Integers:
   • Explain the rules for subtracting positive and negative integers.
   • Use examples to demonstrate the subtraction of positive and negative integers, such as:
     • 5 - 2 = 3
     • -2 - 3 = -5
     • 2 - (-3) = 5
   • Use the number line to visualize the subtraction process.

Guided Practice (20 minutes):

1. Using Number Lines:
   • Provide students with a number line and ask them to add and subtract positive and negative integers.
   • For example:
     • Add 2 and -3 on the number line.
     • Subtract -2 from 5 on the number line.
2. Real-Life Scenarios:
   • Provide students with real-life scenario worksheets involving positive and negative integers, such as:
     • A bank account with a balance of -200, and a deposit of 500.
     • A temperature of -5°C, and a rise of 10°C.

Independent Practice (20 minutes):

1. Quantitative Reasoning Exercises:
   • Provide students with quantitative reasoning exercises involving addition and subtraction of positive and negative integers, such as:
     • A water tank with a capacity of 1000 liters, and an initial water level of -200 liters. If 500 liters of water are added, what is the new water level?
2. Everyday Applications:
   • Ask students to come up with their own real-life scenarios involving positive and negative integers, such as:
     • A savings account with a balance of -100, and a goal to save 500.

Assessment:

1. Observe students during the guided and independent practice activities.
2. Review their worksheets and exercises for accuracy.
3. Use the quantitative reasoning exercises to assess their understanding of the concept.

Conclusion (10 minutes):

1. Review the key concepts of addition and subtraction of positive and negative integers.
2. Ask students to share their own real-life scenarios and how they applied the concepts.
3. Provide feedback and encouragement.