Third Term Lesson Note for Week Six
Class : Primary 5
Subject : Basic Science
Topic : Magnetism
Duration : 40 minutes
Period : Single Period
Reference Book :
- 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 type of magnets, magnetic materials and non-magnetic materials.
Learning Objectives : By the end of the lesson learners will be able to :
i. Explain the meaning of magnetism
ii. Identify and list magnetic and non-magnetic materials
iii. Describes the poles of a magnet and state the uses of magnets.
Previous Knowledge : Learners have been taught electric circuit and it components.
Content :
Magnetism is the Science magnetic existence and properties.
A magnet is any object that can attract other materials such as iron and its alloys.
Magnets can be classified as natural or artificial .
a.) Natural magnets : lodestone found in many parts of the world is a natural magnet.
b.) Artificial magnets : They are the man-made magnets. Most of them are made of iron and steel. Some artificial magnets are made of mixture of aluminum, cobalt and iron.
Magnetic and non-magnetic materials
1. Magnetic materials : These are materials that can be attracted by magnets. Examples are : iron, cobalt, steel and nickel
2. Non-magnetic materials : These are materials that are not attracted by magnets. Examples are : paper, wood, nylon, etc.
Poles of a magnet
A magnet has two (2) poles. These are the North and South poles. In a magnet Unlike poles attracts while likes poles repels .
Types of Magnets
1. Bar magnet
2. Horse-shoe magnet
3. Ring magnet
4.
Uses of magnets.
1. Electric bell and electric telephone uses magnets.
2. Large cranes used for lifting heavy loads use magnets.
3. Magnet is used for separating magnet and non-magnetic objects.
4. Magnet is used in the construction of electric motors generators, bicycle, loud speaker, radio, and television.
5. Magnets are used in the construction of rocket compass and the ship’s compass.
Presentation Steps :
Step 1 : Revises the previous lesson with the learners by asking them questions orally on electric circuit.
Step 2 : Introduces the new topic by asking , “what is magnetism?”
Step 3 : Explains magnet, types of magnet and poles in magnet.
Step 4 : Classify materials into magnetic and non-magnetic materials. Mention some uses of magnet
Evaluation :
1. A __________ is an object that attracts other materials such as iron and its alloys. (a) stone (b) magnet (c) metal
2. A magnet is made up of __________ poles. (a) Three (b) Four (c) two
3. Which of the following is not a magnetic material ? (a) nail (b) feather (c) pin
4. All the following are examples of non-magnetic materials except _____________. (a) nylon (b) steel (c) paper
5. Magnets are used for separating magnetic and non-magnetic materials . (a) True (b) False (c) Not sure
6. In a magnet, unlike poles __________ while like poles ____________.
Conclusion : At the end of the lesson, learners were able to answer the questions correctly.
Assignment :
1. What is magnet ?
__________________________________________________________________________________________
2. Mention two examples of each of the following :
a.) Magnetic materials : __________________, ____________________
b.) Non-magnetic materials : ________________, _____________________
3. Name the types of magnet shown in the images below:
