Third Term Lesson Note for Week Four
Class: Basic 5
Subject: Basic Science
Topic: Electricity (definition, types and terminologies)
Duration : 40 minutes
Period : Single Period
Reference Book :
- Stan Basic Science and Technology for Primary Schools, Book 5.
- Lagos State Unified Schemes of Work for Primary Schools (Primary 4 – 6)
- Online Resources
Instructional Material : Chart showing types of electricity and basic concept used in electricity.
Learning Objectives : By the end of the lesson, learners will be able to :
i. Identify and explain types of electricity
ii. Discuss how it is generated
iii. Discuss the importance in our everyday life
Content :
Electricity is a form of energy. It can also be defined as the flow of electrons from one point to another.
Types of Electricity.
There are basically two types of electricity. These are:-
1.) Static Electricity and
2.) Current Electricity
Static Electricity : This is the type of electricity that gathers and stays in a position.
The existence of this electricity can be verified by rubbing vigorously a plastic pen or rubber comb on wool, fur or hair, then brought near small pieces of paper.
Current Electricity: This is a type of electricity generated as a result of the movement of electrons in chemical substances and metals.
For example, lighting bulbs with cells.
Conductors and Nonconductors (Insulators)
Conductors are objects that allows electricity to pass through them. They are mostly metals.
Examples of Conductors are key, copper wire, stainless spoon, cup and plate, knife, nail, pin, etc.
Nonconductors are objects that do not allow electricity to pass through them. They are also called Insulators. They are usually non-metallic objects.
Examples of Nonconductors (Insulators) are plastic, pieces of wood, pieces of paper, leaves, air, cardboard, pieces of stick, etc.
Simple Electric Circuit.
An electric circuit is the set up of electric devices to generate energy.
The electrical devices that can be used in simple electric circuits are : cell, battery, fuse, key lamp.
A cell is chemical pack that can give out or store electric current. It can either be wet cell or dry cell.
A battery is a group of cells.
A fuse is an electrical device used in limiting the quality or flow of current in a circuit.
A resistor is a device made to produce a particular amount of resistance to the flow of current.
A key is used to switch on/ off an electric flow of current in a circuit.
A lamp is an electric device that produces light as a result of its heated filament.
Presentation Steps :
Step 1 : Revision of the previous topic with the learners.
Step 2 : Introduces the new topic by defining electricity and its concepts.
Step 3 : Explain, identify and describe basic Electricity components.
Evaluation :
1. Electricity is a form of _________________. (a) energy (b) work (c) force
2. ___________ is the type of electricity generated by the movement of electrons in chemical substances . (a) Static Electricity (b) Current Electricity (c) None
3. Objects that allows the passage of electricity through them are called ___________. (a) Conductors (b) Non-conductors (c) Insulator
4. Which of the following is an example of a conductor ? (a) Plastic (b) Nail (c) Wood
5. An object that does not allow electric current to flow through it is known as _______________. (a) Insulator (b) Conductor (c) Semi-conductor
6. All of the following are examples of non-conductor except ___________. (a) Coins (b) Stick (c) Paper
7. A ____________ is a group of cells. (a) cell (b) battery (c) fuse
8. An electric device used in limiting the quality or current flow in a circuit. (a) cell (b) fuse (c) bulb
9. An electric device that produces light as a result of its heated filament is called ____________. (a) lamp (b) battery (c) fuse
10. All the following are electrical devices except ____________. (a) television (b) table (c) blender
Conclusion : At the end of the lesson, learners were able to answer the questions correctly.
Assignment :
1.) Define Electricity: _____________________________________________
__________________________________________________________________________________________.
2.) The two types of electricity are ___________________ and _____________________.
3.) What are Conductors? __________________________________________________________________________________________.
4.) Another name for Nonconductors is ____________________________.
5.) List three examples of each of the following :
a.) Conductors: _____________________________, ___________________ and _____________________.
b.) Nonconductors: _________________________, ____________________ and ____________________.
