Lesson Note on ...

Lesson Notes
09 Jan
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Class: Primary Three
Term: Second term
subject: Basic Science and Technology
curriculum Theme: Computer Studies
Previous Lesson: Components Of A System Unit – Functions Of The Motherboard
Topic: Components of a System Unit
Content/Learning Area: What is the CPU?, Parts of the CPU
Time Allocation: 40 minutes


Performance Objectives

By the end of the lesson, pupils should be able to:

  • Cognitive Domain:

  1. Identify and list two parts of the CPU.
  2. Explain the function of the Arithmetic Logic Unit (ALU).
  3. Describe the role of the Control Unit (CU) in the CPU.
  4. List other vital components found in the system unit.

    • Affective Domain:

  5. 1. Appreciate the importance of each part in a computer system.

    • Psychomotor Domain:

  1. Participate actively in group discussions about computer components.

    • Social Domain:

  2. 1. Work collaboratively with peers during group discussions.


    Reference Materials

    • 9 – Years Basic Education Curriculum
    • Abuja educational Resource Center Scheme of Work
    • NAPPS National Unified Scheme of Work
    • Online Details
    • Relevant Textbooks

    Instructional Materials

    To deliver this lesson, the teacher will use the following materials:

    • Whiteboard or chart paper
    • markers or pens
    • Pictures or diagrams of a computer system unit and its components

    Rationale for the Lesson

    Understanding the components of a computer system unit, especially the CPU, is crucial for building a foundational knowledge of how computers work. This knowledge is essential for future learning in technology and problem-solving.


    Prerequisite/previous Knowledge

    The teacher will start by asking pupils what they already know about computers. A brief review of the previous lesson on computer systems will be conducted. The teacher will than introduce the topic of the system unit as the main part of a computer.


    Lesson Content

    What is the CPU?

    The CPU, or central Processing Unit, is the most critically vital part of the system unit. It’s like the brain of the computer, processing information and controlling all the other parts. It handles all instructions and data.

    Parts of the CPU

    The CPU is made up of several key components that work together to execute instructions and process data. These include:

    1. ##### arithmetic Logic Unit (ALU):

    This part performs all the mathematical calculations and logical operations. It’s like the computer’s calculator.

    1. ##### Control Unit (CU):

    This part controls the flow of data and instructions within the CPU. It directs information to the right place at the right time.

    1. ##### Registers:

    These are small, high-speed storage locations used to hold data and instructions that the CPU is actively using.

    1. ##### Cache Memory:

    This is a small, fast memory that stores frequently accessed data, allowing the CPU to retrieve it quickly without accessing the slower main memory.


    Teaching Methods

    To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion,Question and Answer,Visual Aids


    Instructional Procedures

    To deliver this lesson,the teacher will adopt the following steps:

    Step 1: Introduction

    Time: 5 minutes
    Teaching Skill: Set Induction
    teacher’s Activity: Briefly review the previous lesson. Introduce the topic: Components of a System Unit. Show pictures of a computer system unit.Pupils’ Activity: Respond to teacher’s questions, observe pictures.

    Step 2: Explanation of Key Concepts

    Time: 15 minutes
    Teaching Skill: Explaining, illustrating
    Teacher’s Activity: Explain the concept of the system unit and its importance. Explain the CPU and its function.
    Pupils’ Activity: Listen attentively, ask clarifying questions.

    Step 3: Demonstration/Guided practice

    Time: 10 minutes
    teaching Skill: Demonstrating, guiding
    Teacher’s Activity: Explain the ALU and CU, using diagrams and examples. Guide pupils in identifying the parts of the CPU.
    Pupils’ Activity: Observe the demonstration, participate in identifying the parts.

    Step 4: Self-reliant Practice

    Time: 5 minutes
    Teaching Skill: Monitoring, providing feedback
    Teacher’s Activity: Allow pupils to work individually or in pairs to answer simple questions about the CPU.
    Pupils’ Activity: Answer questions independently or in pairs.

    Step 5: Note-Taking

    Time: 2 minutes
    Teaching Skill: Guiding note-taking
    Teacher’s Activity: Guide pupils in taking notes on the key concepts.Pupils’ Activity: Take notes on the key concepts.

    Step 6: Evaluation/Review

    Time: 3 minutes
    Teaching Skill: Questioning, summarizing
    Teacher’s Activity: review the lesson by asking questions. Summarize the key concepts.
    Pupils’ Activity: Answer questions, participate in the summary.

    Step 7: Conclusion

    Time: 2 minutes
    Teaching Skill: Summarizing
    Teacher’s Activity: Summarize the key concepts and assign homework.
    Pupils’ Activity: Listen to the summary and note the homework.


    Lesson Keywords

    • CPU – Central Processing Unit, the brain of the computer.
    • ALU – Arithmetic Logic Unit, performs calculations.
    • CU – Control Unit, controls data flow.
    • System Unit – The main part of a computer that houses the CPU and other components.

    Lesson Evaluation

    To evaluate the learning,the teacher asks pupils to:

    1. What are the two main parts of the CPU?
    2. What does the Arithmetic logic Unit (ALU) do?
    3. Why is understanding computer components critically important?
    4. What is the role of the Control Unit (CU)?
    5. name some other important parts of the system unit.

    Assignment/Homework

    1. Draw and label the parts of the CPU.
    2. Write a short paragraph explaining the function of the CPU in a computer system.
    3. List three components found inside the system unit and briefly describe their roles.

    Differentiation

    • For slower learners: Provide one-on-one assistance and use simpler language.
    • For advanced learners: Encourage them to research and present additional information about other components of the system unit.
    • For visual/auditory/kinesthetic learners: use visual aids, verbal explanations, and hands-on activities to cater to different learning styles.

    Note for Teachers

    Ensure to use real-life examples and relatable analogies to explain complex concepts.Encourage active participation and provide constructive feedback to reinforce learning.

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