Classification and Examples of Devices Computer Studies JSS 1 Third Term Lesson Notes

Subject: Computer Studies
Class: JSS 1
Term: Third Term
Week: 3
Topic: Understanding Devices
Sub-topic: Classification and Examples of Devices
Duration: 45 minutes

Behavioural Objectives: By the end of the lesson, students should be able to:

1. Define what a device is.
2. Identify and classify devices into four main types.
3. Provide examples for each type of device.

Key Vocabulary Words: Device, Early counting devices, Mechanical devices, Electrical devices, Electronic devices, Analogue devices.

Learning Resources and Materials:

• Textbooks: Lagos State Scheme of Work, Computer Studies textbook for JSS 1.
• Visual aids: Pictures of various devices.
• Whiteboard and markers.

Building Background / Connection to Prior Knowledge:
Start by asking students if they know what devices are and if they can give examples. This will help gauge their prior knowledge and create a connection to the topic.

Embedded Core Skills:

• Classification
• Critical thinking
• Communication

Content:

TOPIC: THE DEVICES

DEFINITION

1. Definition of a Device:
   • Devices are tools or machines made for specific tasks. 🛠️
2. Class of Devices:
   • Early Counting Devices: Stones, beads, fingers for counting.
   • Mechanical Devices: Examples are a sewing machine, car, or an abacus.
   • Electrical Devices: Such as an electric iron, fridge, or fan.
   • Electronic Devices: Like a calculator, radio, or computer.
   • Analogue Devices: Used to measure changing things, such as a thermometer. 📏
3. Examples:
   • Mechanical Device: Sewing machine
   • Electrical Device: Electric fan
   • Electronic Device: Calculator
   • Analogue Device: Thermometer

CLASS OF DEVICES

DEFINITION OF A DEVICE

Devices are instruments, equipments or machines made to perform specific functions.

CLASS OF DEVICES

Devices can be classified into four types:

• Early counting devices
• Mechanical devices
• Electrical device
• Electronic device
• Analogue device

EVALUATION

1. What is a device?
2. List the five classes of device.

1. Devices are instruments made to perform specific _______.
   • a) tasks
   • b) dances
   • c) songs
   • d) stories
2. What type of device measures things that change over time?
   • a) Early counting device
   • b) Mechanical device
   • c) Electrical device
   • d) Analogue device
3. Which device works on mechanical principles?
   • a) Ship
   • b) Electric iron
   • c) Calculator
   • d) Photocopier
4. What type of device controls the flow of electrical currents?
   • a) Early counting device
   • b) Mechanical device
   • c) Electronic device
   • d) Analogue device
5. Which device takes the energy of electric current and transforms it?
   • a) Electric fan
   • b) Blender
   • c) Typewriter
   • d) Rain gauge
6. What is an example of an early counting device?
   • a) Electric kettle
   • b) Stones
   • c) Television
   • d) Camera
7. Which device is used to measure temperature?
   • a) Electric clipper
   • b) Fridge
   • c) Thermometer
   • d) Radio
8. A sewing machine is an example of which type of device?
   • a) Electrical device
   • b) Electronic device
   • c) Mechanical device
   • d) Analogue device
9. What is an example of an electronic device?
   • a) Wheelbarrow
   • b) Calculator
   • c) Rain gauge
   • d) Barometer
10. Which device controls the system and processes information?
    • a) Napier bone
    • b) Washing machine
    • c) Computer
    • d) Stick
11. Which device is used to calculate mathematical problems?
    • a) Electric iron
    • b) Mixer
    • c) Calculator
    • d) Ship
12. What type of device works with electrical energy?
    • a) Early counting device
    • b) Mechanical device
    • c) Electrical device
    • d) Analogue device
13. Which device is used for communication?
    • a) Abacus
    • b) Telephone
    • c) Fan
    • d) Television
14. A scoreboard is an example of which type of device?
    • a) Electrical device
    • b) Electronic device
    • c) Mechanical device
    • d) Analogue device
15. What device is used to measure the weight of an object?
    • a) Rain gauge
    • b) Weighing scale
    • c) Stick
    • d) Marks on the wall

1. Early counting devices: Examples of this include stones,pebbles,beads,fingers and toes,sticks,grains,marks on the wall etc.
2. Mechanical devices: mechanism consisting of a device that works on mechanical principles. Examples of this include ship, cart, sewing machine, motorcycle, car, typewriter, wheel barrow, Abacus, Slide rule, Napier bone, Pascaline, Jacquard’s loom, Babbage’s analytic engine
3. Electrical devices:  take the energy of electric current and transform it in simple ways into some other form of energy Examples include electric iron, electric kettle, blender, mixer, electric clipper, fridge, fan, washing machine, grinding machine etc
4. Electronic devices: are components for controlling the flow of electrical currents for the purpose of information processing and system control. Examples include photocopier, scoreboard, calculator, radio, camera, television, telephone and computer.
5. Analogue: They are used to measure things that change from time to time. Examples include: barometer, thermometer, weighing scale, rain gauge etc.

GENERAL EVALUATION

1. What is a device?
2. List the five classes of device.
3. State the examples of devices.

READING ASSIGNMENT

Computer studies Stella Chiemeke Book 1 page 41.

Modern computer studies by Victoria Dinehin page 21

WEEKEND ASSIGNMENT

1. ____ is an equipment used to perform specific function. (a) Devices (b) Computer (c) Analog (d) mechanical
2. Devices can be classified into ____ (a) 3 (b) 4 (c) 5 (d) 2
3. Which of these is not early counting devices? (a ) fingers (b) sticks (c ) Calculator (d) pebbles
4. Abacus is an example of ____ devices (a) Mechanical (b) Electrical (c) Computer (d) electrical
5. ____ is an example of electronic device (a ) Abacus (b) Computer (c ) Fan (d) ship

THEORY

1. What is a device?
2. List the five types of devices with examples.

Computer Studies JSS 1 Third Term Lesson Notes

Presentation

1. Introduction (5 minutes):
   • Briefly explain what devices are: instruments or machines that perform specific tasks.
2. Classification of Devices (10 minutes):
   • Present the four types of devices: Early counting, Mechanical, Electrical, Electronic, and Analogue.
3. Examples of Devices (20 minutes):
   • Provide examples for each type of device.
   • Encourage students to participate by suggesting examples they know.
4. Teacher’s Activities:
   • Present each type of device and explain its characteristics.
   • Show pictures or real-life examples if available.
   • Encourage questions and discussions.
5. Learners’ Activities:
   • Listen attentively.
   • Participate by providing examples or asking questions.
   • Take notes if necessary.

Assessment:
Ask students to identify and classify devices shown in pictures.

1. What are devices?
   • Devices are tools or machines that do specific jobs.
2. How many types of devices are there?
   • There are four types of devices.
3. What are early counting devices?
   • Early counting devices are things used to count, like stones or beads.
4. Can you name a mechanical device?
   • Yes, a sewing machine is an example of a mechanical device.
5. What do electrical devices do?
   • They use electricity to do different tasks, like a fridge or a fan.
6. What’s an example of an electronic device?
   • A computer or a calculator are electronic devices.
7. What do analogue devices do?
   • They measure things that change over time, like a thermometer.
8. How do early counting devices work?
   • They help count things, like stones or sticks.
9. Can you give an example of a mechanical device?
   • Sure, a wheelbarrow or a typewriter are mechanical devices.
10. What’s special about electrical devices?
    • They use electricity to do tasks, like an electric iron or a blender.
11. Can you name an electronic device?
    • A radio or a camera are examples of electronic devices.
12. How do analogue devices help?
    • They measure things that change, like temperature with a thermometer.
13. What’s the purpose of mechanical devices?
    • They work using mechanical principles, like a motorcycle or a ship.
14. Are electronic devices important?
    • Yes, they help control electricity for tasks like a photocopier or a computer.
15. What’s a common example of an analogue device?
    • A weighing scale or a rain gauge are examples of analogue devices.

Evaluation Questions :

1. What is a device?
2. How many types of devices are there?
3. Give an example of an early counting device.
4. Name a mechanical device.
5. List two examples of electrical devices.
6. What does an electronic device do?
7. Give an example of an analogue device.
8. How are early counting devices different from electronic devices?
9. Why is classification important when studying devices?
10. Can you think of a device not mentioned in the lesson?

Conclusion:

• Recap the main points covered during the lesson.
• Address any remaining questions or concerns from students.
• Provide feedback on students’ participation and understanding.