Components of a System Unit for Primary 3

Class: Primary Three
Term: Third Term
Subject: Basic Science and Technology
Curriculum theme: Computer Studies
Previous Lesson:
Topic: Disk Drive
Content/Learning Area: What is a Disk drive?, Types of disk Drives, Advantages and Disadvantages of Disk Drives
Time Allocation: 40 minutes

Performance objectives

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

• Cognitive Domain:

1. Define a disk drive and its purpose.
2. Identify and describe different types of disk drives.
3. Explain the advantages and disadvantages of each type of disk drive.

• Affective Domain:

1. Show interest in learning about computer components.

• Psychomotor Domain:

1.Identify a disk drive in a computer system.

• Social Domain:

1. Participate actively in class discussions.

Reference Materials

• 9 – Years Basic education Curriculum
• Abuja Educational Resource centre Scheme of Work
• NAPPS National Unified Scheme of Work
• Online Information
• Relevant Textbooks

Instructional Materials

To deliver this lesson,the teacher will use the following materials: whiteboard or chart,Markers or pens,Pictures of HDDs and SSDs.

Rationale for the Lesson

Understanding disk drives is basic to comprehending how computers store and access information. this knowledge is crucial for future lessons on computer operations and data management.

Prerequisite/Previous Knowledge

The teacher will start by asking pupils what they remember from the previous lesson on computer system components. A brief review will be conducted, followed by introducing the topic of disk drives as a crucial part of the system unit.

Lesson Content

Components of a System Unit – Disk Drive

A disk drive is a vital computer part that saves and gets digital information. It’s like a computer library, holding files, programs, and the operating system.

What is a disk Drive?

A disk drive is a storage device that reads and writes data on a storage medium.
Imagine a spinning disk, like a record, with a special coating holding information.This disk is divided into tiny sections (sectors) in circles (tracks). A tiny arm with a read/write head moves across the disk, reading or writing data. This is how a hard disk drive (HDD) works.

Types of Disk Drives

Disk drives come in various forms, each with its own method of storing and retrieving data.
The following are types of disk drives:

1. Hard Disk Drive (HDD)
2. Solid State Drive (SSD)

Hard Disk Drive (HDD)

HDDs are traditional disk drives using spinning platters to store data. They are cheaper but slower and more easily damaged than SSDs because of their moving parts.

Solid State Drive (SSD)

SSDs are newer and use flash memory, like memory cards. They have no moving parts, making them faster and more reliable than HDDs, but they are more expensive.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Description, Question and Answer, discussion.

Instructional Procedures

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

Step 1: Introduction (Set Induction)

Time: 5 minutes
Teaching Skill: Questioning
Teacher’s Activity: Review previous lesson, introduce the topic of disk drives.
Pupils’ Activity: Answer questions, listen attentively.

Step 2: Description of Key Concepts

Time: 10 minutes
Teaching Skill: Explanation
Teacher’s Activity: Explain what a disk drive is, using analogies like a library or record player.Pupils’ Activity: Listen, take notes.

Step 3: Demonstration of Disk Drive Types

Time: 10 minutes
Teaching Skill: Demonstration
Teacher’s Activity: Show pictures of HDDs and SSDs, highlighting their differences.
Pupils’ Activity: Observe, ask questions.

Step 4: Identification of Disk Drive Types

Time: 5 minutes
Teaching Skill: Guided Practice
teacher’s Activity: Ask pupils to identify the types of disk drives.
Pupils’ Activity: Answer questions, participate in discussions.

Step 5: Note-Taking

Time: 5 minutes
Teaching Skill: Note-Taking
Teacher’s activity: Guide pupils in summarizing key concepts.
Pupils’ Activity: Write notes.

Step 6: Evaluation/Review

Time: 5 minutes
Teaching Skill: Questioning
Teacher’s Activity: Ask evaluation questions.
Pupils’ Activity: Answer questions.

Objective-aligned checks:

1. Define a disk drive and its purpose.
2. Identify and describe different types of disk drives.
3. Explain the advantages and disadvantages of each type of disk drive.

Step 7: Conclusion

Time: 5 minutes
Teaching Skill: Summarizing
Teacher’s Activity: Summarize the key points about disk drives and assign a short homework activity.
Pupils’ Activity: Listen, ask questions, and note homework.

Lesson Keywords

• Disk Drive – A component that reads and writes data on disks.
• HDD – Hard Disk Drive,a traditional storage device with spinning platters.
• SSD – Solid State Drive, a newer, faster storage device with no moving parts.
• Data Storage – The process of saving information on a storage device.
• Flash Memory – A type of memory used in SSDs for data storage.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

1. What is the main job of a disk drive?
2. name two main types of disk drives.
3. What are the good and bad points of HDDs and SSDs?
4. Can you give examples of how we use disk drives every day?

Assignment/Homework

1. Research and draw a diagram of an HDD or SSD.
2. List three advantages and disadvantages of using SSDs over HDDs.
3. Explain where disk drives are commonly used in everyday devices.

Differentiation

• For slower learners: Provide one-on-one assistance and use simpler language.
• For advanced learners: Encourage further research on different types of disk drives and their specifications.
• 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 visual aids to help pupils understand the concepts better. Encourage active participation and questions to gauge their understanding effectively.