Functions of basic parts of a computer and mobile digital device for Primary 4

Class: Primary 4
Term: First Term
Week: 4
Age: 9 years
Duration: 45 minutes
Subject: Basic Digital Literacy
Curriculum Theme: Basics of Computing
Focal competence: Appreciating the historical development of digital devices
Key competencies/values: Communication; ICT and Digital Competencies
Skills:

• Describing the functions of basic parts of digital devices

Previous Lesson: Historical development and categorisation of digital devices
Topic: Parts Of Digital Devices
Subject Matter: Functions of basic parts of a computer and mobile digital device

Specific Objectives

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

Cognitive Domain

• Describe the functions of the basic parts of a computer.
• Describe the functions of the basic parts of a mobile digital device.

Psychomotor Domain

• Identify the basic parts of a computer when shown.
• Identify the basic parts of a mobile digital device when shown.

Reference Materials

The following resources were used in planning this lesson:

• 2025 Revised 9 Years Basic Education Curriculum
• Relevant State Unified Scheme of Work
• The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

• Charts showing parts of a computer and mobile device
• Posters displaying digital devices
• Flash cards with names of parts
• An actual computer (desktop or laptop)
• Actual mobile devices (smartphone, tablet)

Rationale for the Lesson

This lesson is important because it helps pupils understand how the digital devices they use every day work. Knowing the functions of basic parts enables them to use these devices effectively and care for them properly. This foundational knowledge is essential for developing digital literacy skills.

Prerequisite/Previous Knowledge

Pupils should have basic knowledge of what a computer and a mobile digital device are, and may have seen or used them before.

Lesson Content/Board Summary

Functions of Basic Parts of a Computer and Mobile Digital Device

Basic Parts and Functions of a Computer

A computer has several basic parts that work together to help us perform tasks. Some of these parts and their functions include:

1. Screen/Monitor: This is the display unit that shows images, text, and videos. It is where you see what the computer is doing.
2. Keyboard: This is used for typing letters, numbers, and symbols into the computer. It has keys for different functions.
3. Mouse: This is a pointing device used to move a cursor on the screen and select items. It helps us click, open, and drag things.
4. System Unit (CPU Casing): This is the main box that contains the central processing unit (CPU) and other important components. It is the “brain” of the computer where all processing happens.
5. Ports: These are openings on the computer where other devices like USB drives, printers, or external monitors can be connected.

Basic Parts and Functions of a Mobile Digital Device

Mobile digital devices like smartphones and tablets also have basic parts that allow them to function. Some common parts and their uses are:

1. Touchscreen: This is the display unit that shows information and also allows you to interact with the device by touching it directly with your finger.
2. Ports: These are openings, usually at the bottom or sides, where you connect chargers, headphones, or other accessories.
3. Camera: Used for taking pictures and recording videos.
4. Microphone: Used for recording sound and for speaking during phone calls.
5. Speaker: Produces sound, allowing you to hear music, videos, and phone calls.

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, Practical Activity

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Engaging/Questioning

Teacher’s Activity: The teacher greets the pupils and asks them to name some digital devices they know or use. The teacher then introduces the topic: “Functions of Basic Parts of a Computer and Mobile Digital Device.”

Pupils’ Activity: Pupils respond to the greetings and name devices like phones, tablets, and computers. They listen attentively to the topic.

Learning Point: Digital device recognition

Step 2: Identifying Computer Parts

Time: 7 minutes

Teaching Skill: Demonstration/Observation

Teacher’s Activity: The teacher displays a computer (or a chart/model) and points out its basic parts one by one: screen/monitor, keyboard, mouse, system unit, and ports. The teacher asks pupils to observe carefully.

Pupils’ Activity: Pupils observe the computer and identify the parts as the teacher points them out. They may repeat the names of the parts.

Learning Point: Computer parts identification

Step 3: Functions of Computer Parts

Time: 7 minutes

Teaching Skill: Explanation/Discussion

Teacher’s Activity: The teacher explains the function of each identified computer part (monitor for display, keyboard for typing, mouse for pointing, system unit for processing, ports for connections). The teacher asks simple questions to check understanding.

Pupils’ Activity: Pupils listen to the explanations and answer questions about the functions of computer parts.

Learning Point: Computer parts functions

Step 4: Identifying Mobile Device Parts

Time: 7 minutes

Teaching Skill: Demonstration/Observation

Teacher’s Activity: The teacher displays a mobile digital device (or a chart/model) and points out its basic parts: touchscreen, ports, camera, microphone, and speaker. The teacher encourages pupils to look at their own devices if they have them (under supervision).

Pupils’ Activity: Pupils observe the mobile device and identify its parts. They may point out parts on their own devices.

Learning Point: Mobile device parts identification

Step 5: Functions of Mobile Device Parts

Time: 7 minutes

Teaching Skill: Explanation/Discussion

Teacher’s Activity: The teacher explains the function of each identified mobile device part (touchscreen for display and input, ports for connections, camera for photos, microphone for sound input, speaker for sound output). The teacher clarifies any misconceptions.

Pupils’ Activity: Pupils listen and participate in the discussion, describing the functions of mobile device parts.

Learning Point: Mobile device parts functions

Step 6: Practical Application

Time: 3 minutes

Teaching Skill: Guided Practice

Teacher’s Activity: The teacher allows a few pupils to come forward and point to a specific part on the computer or mobile device and state its function.

Pupils’ Activity: Selected pupils demonstrate their ability to identify parts and state their functions.

Learning Point: Practical parts identification

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. What is the function of a computer monitor?
2. Name two basic parts of a computer.
3. What do you use the keyboard for?
4. What is the main function of a mobile device’s touchscreen?
5. Name two parts of a mobile phone.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Understanding device functions

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils to copy the essential Board Summary notes on the functions of basic parts of a computer and mobile digital device into their notebooks.

Pupils’ Activity: Pupils copy the notes carefully into their notebooks.

Learning Point: Recording lesson content

Step 9: Conclusion

Time: 3 minutes

Teaching Skill: Summarizing

Teacher’s Activity: The teacher briefly summarizes the lesson by reiterating the importance of knowing the functions of computer and mobile device parts. The teacher encourages pupils to explore these devices safely at home.

Pupils’ Activity: Pupils listen and ask any final questions.

Learning Point: Lesson summary reinforcement

Continuous Assessment/Further Study

Type: Homework

Instruction: Answer the following questions in your notebook:

1. Draw a simple computer and label its monitor, keyboard, and mouse.
2. Write down one function for each labeled part in your drawing.
3. Draw a simple mobile phone and label its touchscreen and camera.
4. Write down one function for each labeled part in your mobile phone drawing.

Lesson Keywords

• Monitor – The screen that shows images and text.
• Keyboard – Used for typing letters and numbers.
• Mouse – Used for pointing and clicking on a computer.
• System Unit – The main box containing the computer’s brain.
• Ports – Openings for connecting other devices.
• Touchscreen – A screen you can interact with by touching.
• Camera – Used for taking pictures.
• Microphone – Used for recording sound.
• Speaker – Produces sound.

Differentiation

Support for weaker learners: Provide flashcards with pictures and names of parts for visual recognition. Pair them with stronger learners during identification activities. Focus on identifying just two key parts for each device.

Extension for faster learners: Challenge them to identify additional parts of the devices (e.g., power button, volume buttons, webcam) and describe their functions. Ask them to think about how these devices have changed over time.

Suggested Lesson Videos

You can search on YouTube for: basic computer parts and functions for kids primary 4 or parts of mobile phone and their functions for kids

Teacher Guide for Using This Lesson Plan

Before the lesson, gather all necessary instructional materials, especially actual computer and mobile devices, or clear, large charts. Ensure the devices are in working condition if you plan to demonstrate their functions. Begin by engaging pupils with questions about devices they know. Follow the sequence of identifying parts first, then explaining their functions for both computers and mobile devices. Encourage hands-on interaction where possible and safe. During the evaluation, ensure questions directly assess the pupils’ ability to describe the functions as stated in the objectives. Guide pupils carefully when copying the Board Summary notes to ensure accuracy. Remind pupils about safe handling of digital devices during the conclusion.