Class: Primary Four
Term: First term
Subject: Basic Science adn Technology
Curriculum Theme: Computer Studies
Previous Lesson: Meaning and Examples of Storage Devices
Topic: Computer Memory
Content/Learning Area: Computer Memory, RAM and ROM, Differences between RAM and ROM
Time Allocation: 40 minutes

Performance Objectives

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

Cognitive Domain:

1. Define computer memory.
2. Differentiate between RAM and ROM.
3. Explain the functions of RAM and ROM.
4. Identify the key differences between RAM and ROM.

Affective Domain:

1.Show interest in learning about computer memory.
2. Cooperate with classmates during activities.

psychomotor Domain:

1. participate actively in class discussions.
2. Complete the evaluation questions accurately.

Social Domain:

1. work collaboratively with peers.
2.Listen attentively to the teacher and classmates.

Reference materials

9 – Years Basic Education Curriculum
Abuja Educational Resource Center Scheme of Work
NAPPS National Unified Scheme of Work
Online Data
Relevant Textbooks

Instructional Materials

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

Whiteboard or chart paper
Markers or pens
Relevant pictures or diagrams

Rationale for the Lesson

Understanding computer memory is crucial for comprehending how computers function.This knowledge forms a foundation for future learning in computer science and technology, and helps pupils understand the technology they use daily.

Prerequisite/Previous Knowledge

the teacher will start by asking pupils what they already know about computers. A brief discussion will follow, leading into the topic of computer memory.The teacher will then introduce the lesson’s objectives.

Lesson Content

Computer Memory

Computer memory acts like a computer’s brain, storing all the details it needs to operate. There are two main types: RAM and ROM.

RAM and ROM

RAM (random Access Memory) and ROM (Read-Only Memory) are two basic types of computer memory, each serving distinct purposes in a computer system.

RAM (Random Access Memory)

RAM is a type of computer memory that stores data and instructions that the computer is currently using.

these include:

RAM is like short-term memory; it stores information while the computer works on tasks (like opening programs or browsing).
It’s temporary; data is lost when the computer is turned off.
adding more RAM can speed up the computer.
It allows the computer to quickly access and modify data.
It is indeed essential for multitasking and running applications smoothly.

ROM (Read-Only Memory)

ROM is a type of memory that stores essential information needed to start the computer.

They are:

ROM is like long-term memory; it stores essential information needed to start the computer (like the operating system).
It’s permanent; information remains even when the computer is off.
You can’t change the information in ROM; it’s read-only.
It contains firmware or software that is crucial for booting up the system.
It ensures that the computer can start up and function properly.

Differences Between RAM and ROM

RAM and ROM differ substantially in their functionality, volatility, and usage within a computer system.

The following are key differences between RAM and ROM:

RAM is temporary; ROM is permanent.
RAM can be written to and read from; ROM is read-only.
RAM stores data currently in use; ROM stores essential startup information.
RAM is volatile, meaning data is lost when power is turned off; ROM is non-volatile, retaining data even without power.
RAM is used for active processes and applications; ROM is used for storing firmware and boot instructions.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion,description,Question and answer

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: Introduces the topic of computer memory and its importance.
Pupils’ Activity: Listen attentively and participate in the discussion.

Step 2: Explanation of Key Concepts

Time: 15 minutes
Teaching Skill: Explaining, illustrating
Teacher’s Activity: Explains the concepts of RAM and ROM using simple analogies and examples.
Pupils’ Activity: listen attentively, ask questions, and take notes.

Step 3: Exhibition/Guided Practice

Time: 10 minutes
Teaching Skill: Demonstrating, guiding
Teacher’s Activity: Uses diagrams or pictures to illustrate the differences between RAM and ROM. Guides pupils through examples.
Pupils’ Activity: Observe the demonstration,participate in guided practice,and ask clarifying questions.

Step 4: Autonomous Practice

Time: 5 minutes
Teaching Skill: Monitoring, assisting
Teacher’s Activity: Asks pupils to answer the evaluation questions independently.
pupils’ Activity: answer the evaluation questions individually.

Step 5: Note-Taking

time: 2 minutes
Teaching Skill: Guiding, summarizing
Teacher’s activity: Summarizes the key concepts of the lesson.
Pupils’ activity: Take notes on the key concepts.

Step 6: Evaluation/Review

Time: 3 minutes
Teaching Skill: Questioning, reviewing
Teacher’s Activity: Reviews the answers to the evaluation questions.Pupils’ Activity: Participate in the review and clarify any doubts.

Objective-aligned checks:

Define computer memory.
Explain the functions of RAM and ROM.
Identify the key differences between RAM and ROM.

Step 7: Conclusion

Time: 2 minutes
Teaching Skill: Summarizing, concluding
Teacher’s Activity: concludes the lesson by summarizing the main points and assigning homework.
Pupils’ Activity: Listen to the summary and note the homework assignment.

Lesson Keywords

Computer Memory – Storage space in a computer where data and instructions are kept.
RAM – Random access Memory; temporary memory used for active tasks.
ROM – Read-Only Memory; permanent memory containing essential startup information.
Volatile Memory – Memory that loses its data when power is turned off.
Non-Volatile Memory – memory that retains its data even when power is turned off.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

What is the function of RAM?
What is the function of ROM?
Explain the difference between RAM and ROM.
Why is it notable for a computer to have both RAM and ROM?

Assignment/Homework

Research and write down three examples of devices that use RAM and ROM.
Explain in your own words why RAM is called “temporary” memory.
Draw a simple diagram illustrating the difference between RAM and ROM.

Differentiation

For slower learners: Provide one-on-one assistance and use simpler analogies.
For advanced learners: Encourage them to research further and explore more complex aspects of computer memory.
For visual/auditory/kinesthetic learners: Use visual aids, verbal explanations, and hands-on activities to cater to diffrent learning styles.

Note for Teachers

Ensure to use real-life examples and analogies to explain the concepts of RAM and ROM. Encourage pupils to ask questions and participate actively in discussions to enhance their understanding.